Surrey · England
Window Mastic in Stonehill
Mastic around window and door frames, sills and patio doors for Stonehill, backed by a 12-month guarantee. Ask us for a quote.
- Damp patches on the reveal after heavy rain
- Whistling draughts around closed windows
- Hard, cracked sealant around windows
About our window mastic in Stonehill
Around Stonehill 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. We work on aluminium frames, timber windows & doors and window sills, and people most often call us about leaking joints at the ends of sills and sealant in the wrong colour for the frame.
Mastic can only go onto a dry, clean joint, so window work in Stonehill is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Every job is covered by our 12-month guarantee.
- Place
- Stonehill (KT16)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Stonehill questions
Can you help a landlord with a rental near Longcross station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Will you come out to Stonehill?
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 get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do you seal inside as well as outside?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
How many windows can you do in a day?
The work takes a few hours for a handful of frames, longer for a whole house. Access and the amount of old mastic make the biggest difference.
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. In a small place like Stonehill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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 any work starts.
Why Stonehill customers choose us
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- Domestic, commercial and hotel work
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost or customer reviews.
How the job changes by surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that is what we find.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Draughts through the window seals rather than the frame
- Condensation trapped between the panes
- Damp problems in the wall away from the window
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Stonehill
- Window sills
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Repaint timber before it’s bare
- Keep paint off silicone joints
- Ventilate rooms so frames don’t stay wet inside
- Clean frames with a soft cloth and soapy water
Silicone cannot generally be painted, so mention any painting plans before any work starts. We can use a paintable sealant where that matters.
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.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Windows and doors in Stonehill
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Botleys Mansion (about 1.4 miles north-east) nearby, there’s older building stock in the area around Stonehill as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In the older streets around Christ Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Longcross station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Salesian School, the mastic around its windows and doors needs looking after like any other building’s.
Stonehill is about 3 miles north of Woking, in Surrey. We provide window mastic to homes and businesses in Stonehill, as part of our work across Surrey. We cover 395 towns and villages across Surrey, from the larger towns to small villages. You can also see our page for Reading, about 19 miles away.
Jobs for window mastic in KT16 works the same way as everywhere else we cover. Local streets include Stonehill Road and Stonehill Crescent. Neighbouring places we cover for window mastic include Ottershaw (1 mile east), Longcross (1 mile north-west), Mimbridge (2 miles south-west), Lyne (2 miles north-east) and Trumps Green (2 miles north). Within a short drive, we also cover Guildford (8 miles south), Woking (3 miles south), Camberley (8 miles west), Epsom (13 miles east), Farnham (15 miles south-west) and Ewell (13 miles east).
Near you in Stonehill
Locally, jobs take us to homes and businesses close to Gracious Pond. Stonehill’s nearest station is Longcross station, about 2.1 miles north-west. Nearby you’ll also find Chobham Museum (2.2 miles south-west) and The Peacocks (3.1 miles south). Open spaces near Stonehill include Gracious Pond and St Ann's Lake.
The process
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a few frames, or a day or more for a whole house. Somewhere like Stonehill needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
Ask for a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job.
Related advice
More services for Stonehill
Landlord and commercial work in Stonehill
Landlords and agents in Stonehill can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.