Greater London · England
Window & door mastic in Peckham, Greater London
Window mastic for Peckham, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
- Cracked internal joints between frame and plaster
About our window mastic in Peckham
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Common call-outs are for a bead that doesn’t match the frame and mastic that has split away from the wall, across window sills, timber windows & doors and patio & French doors.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
All our work is covered by a one-year guarantee, wherever you are in Greater London.
- Where
- Peckham (SE15, SE14, SE5)
- Region
- Greater London
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Peckham, the repair is bigger than the sealant job would have been.
The cost depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why Peckham clients choose us
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
- We are fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at what affects the cost and our reviews.
Window mastic in Peckham: local notes
With historic houses such as Queen's House (about 2.6 miles east) nearby, there’s older building stock in the area around Peckham as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. In a converted house or block, who looks after the windows depends on the lease, so check that before booking.
For site and facilities teams at buildings such as John Donne Primary School, its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Queens Road Peckham station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Peckham is about 2 miles south-east of London, in Greater London. Peckham gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 764 places, and Peckham is one of them.
Every address in SE15, SE14 and SE5 is within our area for window mastic, from the main roads to the quietest streets. We cover properties on Rye Lane, Relf Road and Mona Road and the roads around them. With the A2215 close by, Peckham is easy for our applicators to reach. Neighbouring places we cover for window mastic include Nunhead (1 mile south-east), Telegraph Hill (1 mile south-east), South Bermondsey (1 mile north), Surrey Canal (1 mile north-east) and East Dulwich (1 mile south-west). Further out, we also cover City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles west), St Pancras (4 miles north-west), Shoreditch (4 miles north) and Walthamstow (8 miles north).
Local landmarks in Peckham
We work in homes and buildings around Brimmington Park, The St Thomas the Apostle College and The Kentish Drovers pub. Peckham has its own railway station: Queens Road Peckham station. A little further out are Peckham Platform (under half a mile north-west) and Southwark Adult Education Institute (within half a mile east). Open spaces near Peckham include St. James's Park Lake and Knight's Hill.
How the job changes by surface
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it, where a rigid one would crack.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall.
How we quote for window mastic
You will get a clear quote before any work starts. It takes into account:
- When we can work, for business premises
- The number and length of the joints
- Mould in or behind the old joints
- The number of rooms or windows
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and give you a clear price before we start.
Asking for a quote
To make quoting easier, please include:
- The problem you’ve noticed
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Landlords, agents and businesses in Peckham
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
How the visit works
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes most of a day for a typical house, less for a few frames. In a London area like Peckham, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
How to get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will take it from there.
Related advice
How to look after the new joints
A little care helps the new joints last. Our advice:
- Walk round the house once a year and look at the joints
- Use gentle cleaners on frames and sealant
- Repaint timber before it’s bare
- Don’t use solvent cleaners on the joint
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Nearby places to Peckham
More services for Peckham
Common problems we fix in Peckham
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Signs it’s time to call us include:
- Cracked sealant at the sill ends
- Mastic that’s falling out in pieces
- A bead that doesn’t match the frame
- Draughty joints inside around the window
As a London address, Peckham can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- How long to leave it before use
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
- Whether you can choose the colour
FAQs for Peckham
Can you help a landlord with a rental near Queens Road Peckham station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Is parking a problem for a job in Peckham?
Parking in Peckham, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months, inside or out.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.