Precision Path Spray Foam
Lewisham Spray foam removal

Spray foam removal in Lewisham, done properly the first time

Spray foam removal in Lewisham is what we do every week, from Victorian terraces off Lewisham Market to ex-council houses in Catford. If a surveyor has flagged non compliant loft insulation, or your mortgage lender has refused a loan because of spray foam, our team removes it cleanly, protects the timbers underneath and leaves the loft ready for a proper vapour barrier. We work across Greater London and know these streets well.

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2,100+
Jobs completed
4
Years serving Lewisham
autumn damp checks
Right now in Lewisham

Lewisham overview

Spray foam removal in Lewisham for homes that need to sell

Why we work in Lewisham

Lewisham has a mix of housing that keeps us busy all year. The Victorian terraces around Blackheath and Sydenham have shallow lofts with original rafters, and foam sprayed between them traps moisture until the timber starts to rot. The ex-council properties in Deptford and down towards Catford have deeper roof voids and often a second layer of insulation boards that has to come out too. Add the regeneration areas near Lewisham Market, where buyers are moving in fast and lenders are strict, and you get a steady stream of survey reports flagging non compliant loft insulation. We serve this borough because the demand is real and the work is technical enough that a general builder will usually get it wrong.

Local crews clearing failed loft and cavity foam across SE13, SE6 and SE23

Spray foam removal in Lewisham is a job we get called to constantly, because this borough has one of the highest concentrations of older loft conversions in south east London. Victorian terraces around Ladywell Fields and Forest Hill were often topped up with open cell spray foam in the 2000s, and now those same lofts are failing surveys. We have been working these streets since 2022, so we know which roads have tight rear access, where the parking wardens patrol, and how long a full loft strip takes on a standard three-bed terrace. Our crews use a spray foam removal saw, oscillating multi-tool and industrial vacuum to take the foam back to bare timber without cracking rafters or punching through lath and plaster ceilings. We also handle closed cell spray foam, which is denser and needs more patience, plus cavity wall foam that has trapped damp against the inner leaf. If you are searching for spray foam insulation removal Lewisham homeowners can actually book, this is the team that turns up when we say we will.

Services available

Spray foam removal services we run across Lewisham

Every Lewisham job starts with an insulation assessment, because open cell spray foam and closed cell spray foam come out in completely different ways. If you have been hunting for spray foam removal near me in Lewisham and getting vague answers, we will tell you straight what is in your loft, what it will take to clear it, and what it costs. Most SE13 and SE6 lofts are done in a day.

Spray Foam Removal near me

Our nearest crews cover Lewisham, Catford and Blackheath, usually arriving within 60 minutes of a confirmed booking. We assess the foam type first, then strip it back to bare rafters using a spray foam removal saw and chisel and scraper set. Most three-bed terraces in SE13 take four to six hours, and we bag everything for proper disposal.

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Same day Spray Foam Removal

Same day spray foam removal Lewisham bookings are possible when you call before 11am and the loft is accessible. We keep a slot open each weekday for urgent cases, often homeowners in Deptford or Sydenham who have a surveyor coming back within 48 hours. Bring us the survey report and we will target exactly what the lender flagged.

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24/7 Spray Foam Removal

Emergency call-outs across Lewisham are answered day or night, mostly for water getting into a roof void after foam has blocked ventilation. We can make the roof safe, remove saturated foam from the affected bay and set up an air scrubber to dry the timbers. Full removal is then scheduled for daylight hours when we can see the rafter condition properly.

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How we work locally

How we run spray foam removal across Lewisham

Challenge: Shallow Victorian lofts with limited headroom

Working space in Blackheath and Sydenham lofts can be under a metre at the eaves, which slows removal and makes powered tools awkward to use safely. It also limits how much foam we can take out in one pass.

Solution: We use compact oscillating multi-tools and hand scrapers in the tight bays, working from the ridge down. Foam comes out in smaller sections and goes straight into sealed bags, so the loft never fills with debris and our technicians keep a safe working position throughout.

Challenge: Foam sprayed over existing insulation boards

In ex-council properties around Deptford and Catford, spray foam was often applied on top of rigid insulation boards. The two layers bond together, and pulling them apart can damage the plasterboard ceiling below.

Solution: We cut the foam layer free first with a reciprocating saw, then lift the boards separately. This keeps the ceiling intact and lets us check the rafters for rot from trapped moisture before anything new goes back in.

Where we work

Lewisham town centreCatfordBlackheathForest HillSydenhamDeptford

Service area

Lewisham

Latitude: 51.4613

Extract Directions

Case files

Recent project: 1

Forest Hill, SE23

Challenge

A buyer's mortgage valuation on a three-bed Victorian terrace in Forest Hill flagged closed cell spray foam across the entire roof slope, and the lender refused to proceed until it was removed.

Execution

We surveyed the loft the next morning and confirmed closed cell polyurethane foam bonded directly to the rafters. Using thermal cutting tools and a reciprocating saw, we removed the foam in controlled sections over a full day, checking each rafter for rot as we went. The timbers were sound, so we cleaned the surface, treated two small areas of surface mould and left the loft ready for insulation boards and a new vapour barrier.

Impact

The loft was cleared in one day and documented with photographs for the valuer. The lender signed off the valuation four days later and the sale completed on schedule.

Recent project: 2

Deptford, SE8

Challenge

A homeowner in an ex-council house in Deptford had blown plaster and cold patches along the inner walls of two bedrooms, caused by cavity wall spray foam trapping damp against the inner leaf.

Execution

We inspected the cavity through drilled access points and found the foam had slumped and was holding water against the wall ties. Over two days we removed the foam, cleared the cavity, checked and cleaned the wall ties, and left the walls ready for a breathable insulation system. We also removed a small amount of open cell foam from the loft above.

Impact

The damp readings dropped back to normal within three weeks and the plaster was replaced by the customer's decorator. No further damp has returned in the two winters since.

A pair of hands in pink gloves are cleaning with a spray bottle on a white background.
Our track record
Our track record

Field evidence from Lewisham jobs

Four years of Lewisham loft clearances

Since 2022 we have completed more than 2,100 spray foam removal jobs across south east London, and Lewisham accounts for a large share of them. The pattern is consistent. Roughly seven in ten call-outs come from a failed mortgage valuation or a surveyor flagging non compliant loft insulation. Another two in ten are homeowners dealing with roof timber rot from trapped moisture, usually in Victorian terraces around Forest Hill and Sydenham. The rest are commercial and cavity wall jobs. In the SE13 and SE6 postcodes we typically remove open cell foam in three to five hours and closed cell foam in six to eight, and we clear the loft completely on the first visit in over 95% of cases. Every job ends with photographs of the bare timbers, which is what lenders and buyers actually want to see.

2,100+
Lewisham and SE London jobs

Local questions

How much does Spray foam removal cost in Lewisham?

Most Lewisham lofts cost between 1,200 and 2,800 pounds in 2026, depending on foam type and loft size. Open cell foam sits at the lower end and closed cell at the higher end, because it takes longer to remove without damaging the rafters. Cavity wall foam is priced separately by the metre. We give a fixed price after assessing your loft, so the figure you agree is the figure you pay.

Who is the best Spray foam removal company in Lewisham?

The right company is the one that identifies your foam type, protects the timbers and documents the removal for your lender. We have completed over 2,100 spray foam removal jobs across south east London since 2022, and most of our Lewisham work comes from referrals. Ask any contractor whether they photograph the rafters and how they dispose of the foam, then compare the answers.

Is Spray foam removal near me available 24/7 in Lewisham?

Yes, we answer emergency call-outs across Lewisham 24 hours a day, mostly for water getting into a roof void after foam has blocked ventilation. We can make the roof safe and remove saturated foam from the affected area at any hour. Full removal is then scheduled for daylight, when we can properly inspect the rafter condition.

Trust and credentials

Licensed, insured and compliant in Lewisham

Spray foam removal touches your structure, your mortgage and your waste disposal, so the paperwork matters. Our technicians hold CSCS cards and PASMA certification for safe working at height, and we work to Building Regulations Part L requirements on every loft we clear. We carry full public liability insurance and CHAS accreditation, and our waste is disposed of through licensed routes. Every Lewisham job ends with photographs of the bare timbers and a written summary you can hand to a valuer, surveyor or buyer. If you need the removal documented for a lender, we provide that as standard.

Public liability insurance for insulation removal works
Licensed waste carrier registration for foam disposal
CHAS accreditation CHAS

Areas we cover

Westminster Camden Islington Hackney Westminster Camden Islington Hackney
When To Call

Signs you need spray foam removal in Lewisham

Most people in Lewisham only find out they have a spray foam problem when a surveyor or lender tells them. But there are earlier signs, and catching them saves money. If you have been searching for spray foam insulation removal near me in Lewisham and wondering whether your loft is affected, these are the things to look for before a sale or remortgage forces the issue.

1. Surveyor flags non compliant loft insulation

This is the most common trigger in Lewisham. A valuer sees spray foam between the rafters and refuses to lend until it is removed and the timbers inspected. Act quickly, because most sales have a deadline and removal slots fill up.

2. Damp or mould on the roof timbers

Foam seals the roof and traps moisture against the rafters, which is how roof timber rot starts. If you can see dark staining or a musty smell in the loft, the foam has already caused a problem and it needs to come out before the timber is affected further.

3. Cold patches or blown plaster on inner walls

Cavity wall damp from spray foam shows up as cold spots and plaster blowing on the inside of external walls. It is common in Catford and Deptford semis. The foam has to be removed before the wall can dry out and be re-insulated properly.

4. Condensation forming in the attic

Attic condensation from spray foam happens when the roof cannot breathe. You will see water droplets on the underside of the roof deck or felt, and sometimes mould on stored items. Left alone, it soaks the timbers and spreads.

5. Mortgage lender refuses or delays your loan

Mortgage lender refusal due to spray foam is a hard stop. Lenders want proof the foam has been removed and the structure checked. We provide photographs and a written summary that valuers accept, which usually gets the loan moving again within days.

Local Problem Patterns

Common spray foam problems in Lewisham

Lewisham's housing stock and damp climate create a predictable set of spray foam problems. The borough has a lot of Victorian terraces with shallow lofts, plus ex-council properties with deep roof voids, and both types were targeted by foam installers in the 2000s. Add south east London's damp winters and the fact that many of these roofs were never designed to be sealed, and you get trapped moisture, rotting timbers and failed valuations. These are the four issues we see most often.

Spray foam insulation failing building regulations

Why it happens here

Much of the foam installed in Lewisham lofts during the 2000s does not meet current Building Regulations Part L requirements for ventilation and insulation. When a property is sold or re-insulated, the non compliant loft insulation is flagged immediately.

Our approach

We remove the foam completely, check the timbers and leave the roof void ready for compliant insulation boards and a vapour barrier. That gives you a loft that meets Part L and satisfies a building control inspection.

Mortgage lender refusal due to spray foam

Why it happens here

Most UK lenders treat spray foam in a roof as a risk because it hides the timber condition and can trap moisture. In Lewisham's fast-moving market, a refusal can stall a sale within days of the valuation.

Our approach

We prioritise these jobs, often booking them within 24 hours. After removal we photograph every rafter and provide a written summary of the timber condition, which is exactly what valuers need to sign the property off.

Roof timber rot from trapped moisture

Why it happens here

Foam sprayed directly onto rafters in older Lewisham roofs stops the timber breathing. Over a decade or more, condensation builds up and the rafters start to soften and discolour, especially on north-facing slopes.

Our approach

We remove the foam carefully with hand tools where the timber is already weak, treat any early rot and flag sections that need replacing. We never force foam off a soft rafter, because that is how structural damage happens.

Cavity wall damp from spray foam

Why it happens here

In Catford and Deptford, foam injected into cavity walls has slumped over time and now bridges the gap, letting water reach the inner leaf. The result is cold patches, blown plaster and rising damp readings inside the house.

Our approach

We remove the foam through drilled access points, clear the cavity and inspect the wall ties while we are in there. Once the cavity is clear and dry, the wall can be re-insulated with a breathable system that will not trap water.

Local Pricing

What spray foam removal costs in Lewisham

Typical 2026 pricing for spray foam removal in Lewisham runs from around 1,200 to 2,800 pounds for a standard three-bed loft, depending on the foam type and how much of it there is. Open cell foam is quicker to remove and usually sits at the lower end. Closed cell foam takes longer and costs more, because it bonds harder to the rafters and needs thermal cutting tools. Cavity wall foam is priced separately, usually by the metre of wall. We give a fixed price after the assessment, so there are no surprises on the day. If you need affordable spray foam removal Lewisham Greater London homeowners can budget for, we will always tell you honestly whether the job can be done in a day or needs longer.

Availability in Lewisham: We run weekday and Saturday slots across Lewisham, with same day spray foam removal available if you call before 11am and the loft is accessible. Emergency call-outs for water ingress or storm damage are answered 24/7. Most assessments in SE13, SE6 and SE8 are booked within 24 hours, and SE23 and SE26 usually within two working days.

1

Foam type and density

Open cell spray foam is softer and comes away faster, so a typical SE13 loft takes three to five hours. Closed cell foam is denser and bonded harder, often taking a full day and costing noticeably more because of the extra labour and tooling involved.

2

Loft size and access

A shallow Victorian loft in Blackheath with limited headroom takes longer than a deep roof void in Deptford. Narrow side returns, no off-street parking and loft access through the house all add time, and we factor that into the quote rather than charging extra on the day.

3

Timber condition and rot

If foam has trapped moisture and the rafters have started to rot, we need extra time to treat the timber and may need to replace sections. We check this during the assessment and tell you before we start, so the price you agree is the price you pay.

Year-Round Coverage

How the seasons affect spray foam removal in Lewisham

Lewisham's damp, changeable climate shapes when people book spray foam removal. Autumn and winter are when trapped moisture shows itself, spring is when buyers start viewing properties, and summer is the easiest time to work in a hot loft. If you are planning spray foam insulation removal near me in Lewisham, the season you choose affects both how quickly we can work and what we find up there.

Spring

Spring is the busiest season for Lewisham sales, so most of our work comes from surveyors flagging non compliant loft insulation ahead of a completion. Damp patches from the winter are still visible on timbers, which makes the assessment straightforward.

Tip

If you are selling this year, book the assessment as soon as the survey is done. Spring slots in SE13 and SE23 fill up quickly and a delay can push back your completion date.

Summer

Warm, dry weather makes lofts easier to work in and speeds up removal, especially in Blackheath and Sydenham where headroom is tight. It is also the best time to check timbers, because any damp from the previous winter has had a chance to dry.

Tip

Summer is the ideal window for a planned removal rather than an emergency one. Book early and we can often complete a full loft clearance in a single day.

Fall

As the rain returns, attic condensation from spray foam becomes obvious again. Homeowners in Forest Hill and Catford start noticing musty smells and damp on stored items, which usually means the foam has been trapping moisture all year.

Tip

Get the loft inspected before the worst of the winter. Removing foam in autumn lets the timbers dry out naturally before the cold, wet months set in.

Winter

Winter is when roof timber rot and cavity wall damp are at their worst in Lewisham. Cold surfaces and high indoor humidity push condensation into any roof void that cannot breathe, and emergency call-outs for water ingress rise.

Tip

If water is getting in through a foam-blocked roof, call us straight away. We can make it safe and remove the saturated foam, then schedule the full removal for a dry day.

Hiring Smart

What to ask a spray foam removal contractor in Lewisham

Not every contractor who offers spray foam removal in Lewisham has the tools or the experience to do it without damaging your roof. The difference shows up in the questions they can answer and the evidence they provide. Before you book anyone, ask these five things. A good contractor will answer them without hesitating, and the answers will tell you whether your rafters are in safe hands.

  1. 1

    "Can you tell me whether my loft has open cell or closed cell foam?"

    Why it matters

    The two types need completely different removal methods and take different amounts of time. A contractor who cannot identify the foam before quoting is guessing, and that usually leads to a higher bill or damaged rafters once work starts.

  2. 2

    "Will you photograph the timbers after removal for my lender?"

    Why it matters

    Most Lewisham homeowners need proof of removal for a mortgage valuation. A contractor who documents the bare timbers with photographs and a written summary saves you a second inspection and keeps your sale on track.

  3. 3

    "How do you protect the rafters if the foam is bonded hard?"

    Why it matters

    Forcing closed cell foam off old timber is how rafters get split. Ask whether they use thermal cutting tools, saws and hand scrapers, and whether they stop if the timber looks weak. The answer tells you a lot about their experience.

  4. 4

    "What happens to the foam you remove?"

    Why it matters

    Polyurethane foam and isocyanate-based products should go through licensed waste routes, not a general skip. Ask for the disposal method. It matters for the environment and it shows whether the contractor is working to proper standards.

  5. 5

    "Is the price fixed after the assessment, or can it change on the day?"

    Why it matters

    A fixed price after a proper loft assessment means the contractor has actually looked at the job. If the quote is vague or based on a phone description, expect extra charges once they see the foam and the timber condition.

Knowing the Area

Getting around Lewisham on the job

Lewisham is easy to navigate once you know it, and we use the landmarks as reference points when scheduling. Jobs near the Horniman Museum usually mean narrow residential streets with permit parking, so we allow extra time. Around Blackheath Common the restrictions are tighter still. Lewisham Market and Deptford Market sit in the busiest parts of the borough, where we plan around market days and school runs. Ladywell Fields is a useful marker for the streets between Catford and Lewisham town centre, an area we cover most weeks.

Landmarks

  • Horniman Museum

    A useful orientation point for jobs in Forest Hill and the SE23 streets around it. Parking is restricted on match and event days, so we schedule around them and often carry equipment in from a nearby bay.

  • Blackheath Common

    Marks the northern edge of our Lewisham patch. The surrounding roads have some of the oldest housing we work on, with shallow lofts and original rafters that need gentle removal methods.

  • Ladywell Fields

    Sits between Catford and Lewisham town centre and helps us group SE13 and SE6 jobs into the same day. The terraces along the park are a regular source of loft foam removal work.

Commercial Districts

  • Lewisham Market and town centre

    A busy retail core with shops, offices and flats above. We clear spray foam from commercial units and the residential lofts above them, usually scheduling work early morning before the market fills up.

  • Deptford Market and Creek area

    A mix of small warehouses, workshops and converted industrial buildings. Demand here is mostly for closed cell removal from metal roof decks and cavity wall foam in the older brick units.

Transport & Access

  • Lewisham DLR and rail station

    A major interchange that makes the town centre easy to reach by public transport. We use it as a meeting point for assessments where parking is difficult.

  • A20 and South Circular (A205)

    The main road routes through the borough. They let us move crews between Catford, Lee and Blackheath quickly, though we avoid the South Circular at peak times.

Nearby areas we cover from Lewisham

Lewisham sits in the middle of our south east London patch, so we can reach most neighbouring boroughs within half an hour outside peak traffic. We regularly work in Greenwich, Southwark and Bromley, and we cover the rest of Greater London on a scheduled basis. If you are just outside the borough, call and we will confirm the next available slot.

Westminster

Across central London, roughly 40 minutes by road outside peak hours. We cover Westminster on scheduled days rather than same-day call-outs.

Camden

North of the river, around 45 minutes from Lewisham. Camden jobs are usually booked in advance and grouped with Islington work.

Islington

About 40 minutes north. We see similar Victorian loft foam problems to Lewisham, so the same crews often cover both.

Hackney

Roughly 35 minutes north east. Hackney has a lot of loft conversions with closed cell foam, a common source of lender refusals.

Tower Hamlets

About 30 minutes north. We cover Tower Hamlets for both residential lofts and commercial roof foam near the docks.

Greenwich

Our closest neighbouring borough, around 15 minutes away. Greenwich jobs are often slotted into the same day as Lewisham work.
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Book spray foam removal in Lewisham today

If a surveyor has flagged your loft, or you are seeing damp on the timbers, do not wait for the problem to get worse. We cover every Lewisham postcode, from SE13 to SE26, and we can usually assess your loft within 24 hours. You get a fixed price, a clear explanation of what is up there, and a loft left ready for new insulation. Call us on 02080885345 and we will get you booked in.

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