Greater London · England

Camden Town Window Mastic

Window and door frames in Camden Town need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.

  • Cracked internal joints between frame and plaster
  • Gaps where the sill meets the wall
  • Draughts coming in around windows and doors

Window mastic in Camden Town

Window mastic in Camden Town: local notes

Historic houses like Winfield House (about 1.2 miles south-west) are a reminder that the area around Camden Town has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. In London conversions and blocks, the lease decides who is responsible for the frames, so it’s worth checking before booking.

Homes close to St Michael's Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. As a London address, Camden Town can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

Camden Town is about 2 miles north of City of Westminster, in Greater London. We carry out window mastic for homeowners, landlords and businesses in Camden Town and nearby. We cover 764 towns and villages across Greater London, from the larger towns to small villages.

Our applicators cover all of NW1, N1C, NW5 and NW3 for window mastic. Whether your property is on Camden High Street, Greenland Road and Camden Road or anywhere close by, we can help. With the A400 and B512 close by, Camden Town is easy for our applicators to reach for window mastic. Neighbouring places we cover for window mastic include Agar Town (1 mile east), Kentish Town (1 mile north-west), Chalk Farm (1 mile north-west), Somers Town (1 mile south-east) and Primrose Hill (1 mile west). Larger places within reach include London (3 miles south-east), Kensington (4 miles south-west), Shoreditch (3 miles east), Walthamstow (6 miles north-east), Whitechapel (3 miles south-east) and Ruislip (12 miles west).

Local landmarks in Camden Town

Locally, jobs take us to homes and businesses close to The Camden School for Girls, North Bridge House School and The Camden Eye pub, among other places. Other local landmarks include Lewis Cubitt Park (0.7 miles east) and Vaughan Williams Memorial Library (within half a mile west). Camden Town has its own railway station: Camden Road station. Other landmarks nearby include St Pancras Hospital (0.5 miles south-east) and Montfichet's Tower (2.5 miles south-east). Not far away are St. James's Park Lake and Adelaide Nature Reserve.

Map of Camden Town © OpenStreetMap contributors

How we handle window mastic in Camden Town

A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. Common call-outs are for rushed sealant from a window installation and black, perished sealant on frames, on composite doors, uPVC windows and timber windows & doors.

Many London homes are flats, with windows high above the street. In a converted house or block, the lease normally says who is responsible for the windows, so it’s worth checking before booking, and access in Camden Town is something to talk through when you book.

Each job carries a 12-month guarantee, large or small.

Place
Camden Town (NW1, N1C, NW5, NW3)
Wider area
Greater London
Guarantee
12 months on all our work
Quote
A clear price before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Quotes for window mastic in Camden Town

Call for a quick quote. What matters most is:

  • When we can work, for business premises
  • The old material and how stubborn it is
  • Mould in or behind the old joints
  • Access and height

Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

Asking for a quote

Before you ask for a quote, have a think about:

  • The rough size of the job
  • If it’s domestic, commercial or a hotel
  • Pictures of the joints, sent by email
  • Any previous sealing or DIY work

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.

Why act early in Camden Town

A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Camden Town, the repair is bigger than a sealant job.

No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.

What you get with us

  • We never seal over old sealant
  • Colour picked to suit the job
  • We leave the area clean and tidy
  • ARBOMaster approved applicator

See what affects the cost and what customers say.

Work for landlords, hotels and businesses

We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

The process

Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a morning for a couple of windows and a door. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. Mention any building rules, key holders or managing agents when you book.

  1. We start by checking each window and door with you.
  2. We remove the old mastic and clean the frame and the wall.
  3. Where gaps are deep, backing rod goes in first.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Every joint is checked before we leave.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • On commercial sites, let us know about site rules
  • For indoor joints, keep the area dry beforehand if you can

Getting a quote

We quote each job on its own. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.

Get a price

Related advice

Do you need window mastic in Camden Town?

Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.

Common reasons people contact us include:

  • Rushed sealant from a window installation
  • Hard, cracked sealant around windows
  • Sealant in the wrong colour for the frame
  • Mastic that’s falling out in pieces

If you look after a building such as Our Lady Roman Catholic Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

Questions to ask before booking

  • What preparation is included
  • Who turns up on the day
  • What the quote includes, VAT included or not
  • What the cure time is

How to choose a mastic man

What the job involves on each surface

Aluminium frames

Bi-fold and sliding aluminium doors have long frame joints, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.

Patio & French doors

The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so we pay close attention there.

When something else is needed

Honest advice matters more to us than a booking, so here’s what sealant can’t fix:

  • A sash or casement that will not close properly
  • Damp coming through the wall itself rather than the frame joint
  • Soft or decayed wood in the frame

If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

What we seal

  • Timber windows & doors
  • Aluminium frames
  • Composite doors
  • Patio & French doors
  • Window sills
  • uPVC windows

Questions from Camden Town

Is parking a problem for a job in Camden Town?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.

Can you help a landlord with a rental near Camden Road station?

Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.

Do you guarantee window mastic?

Yes. Each job is covered for 12 months.

Where are you based?

Our base is Crawley. Our area covers South East England, London and Scotland.

Can you do the inside joint as well?

Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.

Do I need to be at home?

We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.

Can you quote for more than one area?

Yes, we can. Several rooms, windows or areas can go on one quote.

How many windows can you do in a day?

A handful of frames is a short visit. You’ll get a timescale with the quote.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job