Surrey · England
Window & door mastic in Thorpe Green, Surrey
Window mastic in Thorpe Green from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rushed sealant from a window installation
- Black, perished sealant on frames
- White mastic on grey or black frames
Window mastic in Thorpe Green
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We are often asked to deal with gaps left after new windows were fitted and mastic that has split away from the wall, across composite doors, timber windows & doors and window sills.
Around Thorpe Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Every job comes with our 12-month guarantee, wherever you are in Surrey.
- Where
- Thorpe Green (GU25, TW20)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
A little care helps the new joints last. Our advice:
- Make sure the drainage slots are not blocked
- Do not paint over the silicone
- Use gentle cleaners on frames and sealant
- Keep timber frames painted
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
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 Thorpe Green
What else we do in Thorpe Green
What affects the quote in Thorpe Green
For a quick quote, just ask. What matters most is:
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- Mould in or behind the old joints
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
You do not need to know the technical terms. Just tell us:
- The address or postcode of the job
- Whether it has been sealed before
- What’s wrong with the joints now
- Photos by email, if that’s easy
There’s no standard price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Thorpe Green homes and the weather
With historic houses such as Botleys Mansion (about 2.1 miles south) nearby, there’s older building stock in the area around Thorpe Green as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Thorpe CofE Aided Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Virginia Water station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Thorpe Green is about 2 miles south of Egham, in Surrey. Jobs in Thorpe Green get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Surrey coverage runs to 395 places, Thorpe Green among them. For nearby work, see our Reading page.
All of GU25 and TW20 is within our area for window mastic, from the main roads to the quietest streets. Streets in the area include Green Road and Sandhills Lane. We also cover Thorpe (1 mile north-east), Stroude (1 mile north-west), Virginia Water (1 mile west), Egham Hythe (2 miles north-east) and Egham (2 miles north). Further out, we also cover Guildford (11 miles south), Woking (6 miles south), Camberley (9 miles south-west), Epsom (13 miles east), Ewell (13 miles east) and Walton-on-Thames (6 miles east).
Near you in Thorpe Green
Around Thorpe Green, our work takes us to homes and buildings near Riverside Walk, Salesian School and Rose And Crown Public House. For rail, the closest station is Virginia Water station, roughly 0.8 miles west. Well-known places in the area include St. Peter's Hospital (2 miles south-east) and Spelthorne Museum (2.4 miles north-east). Open spaces near Thorpe Green include Gracious Pond and St Ann's Hill.
How the job changes by surface
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Common questions in Thorpe Green
Do you cover smaller places like Thorpe Green?
Yes. Thorpe Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Virginia Water station. Can you help?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Can you reach windows above the ground floor?
Usually, yes. We plan safe access before the job.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
What does window mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us with a short description of the job.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Do you have sealant for grey or black windows?
Yes, we choose a colour to suit the frame. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Aluminium frames
- Timber windows & doors
- Composite doors
- Window sills
- Patio & French doors
- uPVC windows
How it works
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from an hour or two to a full day, depending on how many frames there are. In a small place like Thorpe Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Clear items away from the joints we’re working on
- Let us know about parking restrictions
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.
Advice
Landlords, agents and businesses in Thorpe Green
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.