Surrey · England

Cudworth Window Mastic

Problem with your window and door frames in Cudworth? We remove the old material, prepare the joints and seal them properly.

  • Black, perished sealant on frames
  • Draughts coming in around windows and doors
  • Water coming in at the bottom corners of a door

Window mastic for Cudworth homes and businesses

For landlords and businesses

From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Window mastic for homes and businesses in Cudworth

Around Cudworth we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you are dealing with rain getting in at the frame or under the sill and untidy mastic left by window fitters, we can help.

Homes in small places like Cudworth often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

Each job carries a 12-month guarantee.

Applicator reaching up to seal an external door frame on a sunny day
Place
Cudworth (RH5)
Wider area
Surrey
Guarantee
One year on every job
Quotes
A clear price before we start
Phone
0345 464 0079
Last updated
26 October 2026

What the job involves on each surface

Aluminium frames

Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match suits the frame.

Patio & French doors

Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.

What we do, step by step

There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes a few hours for a few frames, or a day or more for a whole house in most cases. Somewhere like Cudworth needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. Each frame is looked over and we agree which ones need resealing.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Where the gap is deep, backing rod goes in first.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. Every joint is tooled smooth and checked before we leave.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Try not to wet indoor joints just before the visit
  • Let us know if you’ve seen damp or leaks

How to get a quote

There’s no standard price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.

Ask for a quote

Related advice

Should I try it myself first?

If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

What window mastic looks like in Cudworth

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Managing a site like Newdigate CofE Endowed Aided Infant School? Then the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of St Peter, the joint between an old wall and a newer frame is generally the first place rain gets in.

Cudworth is about 4 miles west of Horley, in Surrey. Across the RH5 area, we can carry out window mastic at your property. Our Surrey coverage runs to 395 places, Cudworth among them.

Postcode districts we cover here for window mastic: RH5. That includes homes and businesses on Cudworth Park, The Poplars and Burnt Oak Lane and the roads around them. Nearby, we also carry out window mastic in Newdigate (1 mile west), Russ Hill (1 mile south-east), Parkgate (2 miles north), Charlwood (2 miles east) and Norwood Hill (2 miles north-east). Larger places within reach include Guildford (15 miles north-west), Epsom (12 miles north), Horley (4 miles east), Redhill (7 miles north-east), Ewell (13 miles north) and Reigate (6 miles north-east).

Local landmarks in Cudworth

Around Cudworth, our work takes us to homes and buildings near Newdigate Brickworks, among other places. For rail, the closest station is Holmwood station, roughly 2.8 miles north-west. Nearby you will also find Langley Green Hospital (3.8 miles south-east). Green spaces nearby include Vann Lake and Leith Hill.

Map of Cudworth © OpenStreetMap contributors

Looking after it afterwards

Simple care keeps the joints in good condition. Our advice:

  • Look round the frames every year or so
  • Repaint timber before it’s bare
  • Air rooms to keep condensation down around windows
  • Do not aim a pressure washer at the joints

Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.

A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.

What we can’t put right

A few problems are outside what sealant work can do:

  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Broken hinges, locks or handles
  • Rotten timber, which needs a joiner first

Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.

Where we work in Cudworth

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

FAQs for Cudworth

Can you do window mastic in Cudworth?

Yes, Cudworth is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.

I let a flat near Holmwood station. Can you help?

Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.

Is the work guaranteed?

Yes, with our one-year guarantee. Keeping drainage clear and checking the joints yearly helps them last.

Do the sealants smell?

Possibly a little. It fades as the sealant cures.

Can you quote for more than one area?

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

How long will my window job take?

The work takes a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.

Can you get sealant to suit coloured frames?

Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.

What does window mastic cost?

The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.

Signs you need window mastic in Cudworth

Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid cannot stretch. Backing rod sets the right depth.

These are the problems we’re asked about most:

  • Draughty joints inside around the window
  • Gaps left after new windows were fitted
  • Cold air getting in at the frame edge
  • White mastic on grey or black frames

For landlords with property near Holmwood station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

What to look for in a quote

  • How the surfaces are prepared before sealing
  • Whether the sealant suits the joint
  • When the joint can take water or movement
  • Who turns up on the day

10 questions to ask before booking

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