Surrey · England
Mytchett Window Mastic
Window and door frames in Mytchett need attention? We cut out the old, prepare the joints and apply the right sealant.
- Black, perished sealant on frames
- Gaps left after new windows were fitted
- Sealant in the wrong colour for the frame
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Don’t aim a pressure washer at the joints
- Check the mastic once a year
- Clear any debris from frame drain holes
- Ventilate rooms so frames don’t stay wet inside
Most silicone sealants won’t take paint, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
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. Catching it early keeps the fix to a reseal.
How we handle window mastic in Mytchett
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on timber windows & doors, composite doors and uPVC windows, and the jobs we see most are a bead that doesn’t match the frame and mastic that has split away from the wall.
In smaller places like Mytchett, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Every job is covered by a one-year guarantee.
- Place
- Mytchett (GU16)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Mytchett
Other services in Mytchett
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of frames, longer for a whole house. Parking around Mytchett is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
Advice
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- A failed sealed unit that has misted up
- A sash or casement that won’t close properly
- Draughts through the window seals rather than the frame
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Where we work in Mytchett
- Timber windows & doors
- Window sills
- Patio & French doors
- Aluminium frames
- uPVC windows
- Composite doors
What we are called out for in Mytchett
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. If the sealant can’t stretch, it splits.
People usually contact us when they notice one of these:
- Gaps left after new windows were fitted
- Black, perished sealant on frames
- Gaps between the frame and the inside reveal
- Damp patches on the reveal after heavy rain
For an older house near a landmark such as Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Which sealant they’ll use, and why
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
What the job involves on each surface
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.
Composite doors
A composite door usually sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
What affects the quote in Mytchett
You will get a clear quote before any work starts. It takes into account:
- How easy the joints are to reach
- The number of rooms or windows
- Any working-time requirements on site
- Any mould that needs treating
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- The address or postcode of the job
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. When it suits you, ring 0345 464 0079 or drop us an email.
Mytchett questions
Is Mytchett within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do window mastic in Mytchett?
Yes, Mytchett is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can you match the sealant to my frames?
Normally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months.
Where are you based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Windows and doors in Mytchett
Historic houses like Wanborough Manor (about 4.9 miles south-east) are a reminder that the area around Mytchett 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Mytchett Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Farnborough North station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Mytchett is about 2 miles south of Frimley, in Surrey. We provide window mastic to homeowners, landlords and businesses in Mytchett and the surrounding area. Our area takes in 395 places across Surrey, from the larger towns to small villages. For nearby work, see our Reading page (15 miles or so).
We cover every part of GU16 for window mastic and the streets around it. Window mastic is available to properties on Wynfields, Coleford Close and Burgess Close. You’ll find Mytchett on the B3411, so it’s easy for us to get to with everything needed for window mastic. If you’re just outside Mytchett, we cover North Camp (1 mile south-west), Ash Vale (2 miles south), Farnborough (2 miles west), Cove (3 miles west) and Southwood (3 miles west). Larger places within reach include Guildford (7 miles south-east), Woking (7 miles east), Camberley (3 miles north), Farnham (6 miles south-west), Egham (12 miles north-east) and Walton-on-Thames (15 miles north-east).
What’s near Mytchett
In Mytchett, that means homes and buildings near Henry Tyndale School, Prince of Wales pub and Sixth Form College and the streets around them. Also close by are Frimley Lodge Park (0.6 miles north) and National Aerospace Library (1.4 miles west). For rail, the closest station is Farnborough North station, about 1.1 miles north-west. A little further out are Frimley Park Hospital (2 miles north) and Royal Army Dental Corps Historical Museum (1.8 miles south-west). Not far away are Danger Hill and Aunt's Pool.
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.