Surrey · England
Penton Hook Window Mastic
Professional window mastic in and around Penton Hook, with old sealant always removed completely.
- Damp patches on the reveal after heavy rain
- Leaking joints at the ends of sills
- Cracked internal joints between frame and plaster
Window mastic in Penton Hook, done properly
There are two joints on most windows. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. Typical jobs include gaps left after new windows were fitted and water coming in at the bottom corners of a door, on window sills, composite doors and aluminium frames.
Outdoor sealant needs dry, clean surfaces, so work on frames around Penton Hook is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
All our work is covered by a 12-month guarantee.
- Where
- Penton Hook (KT16)
- Region
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in Penton Hook
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Older cottages and farmhouses around Penton Hook can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.
Why Penton Hook customers choose us
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
- White, clear, grey or another colour, product permitting
- An ARBOMaster approved applicator
Read what affects the cost or what customers say.
What the job involves on each surface
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match suits the frame.
Common problems we fix in Penton Hook
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Keep an eye out for these signs:
- Whistling draughts around closed windows
- Rushed sealant from a window installation
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
If you live in an older home near Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- Whether the sealant suits the joint
- Is VAT in the price?
- How hidden problems are handled
- Is the old sealant removed completely?
What happens on the day
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes most of a day for a typical house, less for a few frames from start to finish. In a small place like Penton Hook, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Preparing for the visit
- Mention if the joints have been sealed before
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear price.
Read more
Nearby places to Penton Hook
More services for Penton Hook
Questions from Penton Hook
Do you cover smaller places like Penton Hook?
Yes. Penton Hook is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Chertsey station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can you match the sealant to my frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we’ll match it as closely as we can.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Where do you work from?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Frames and glazing around Penton Hook
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Botleys Mansion (about 2.8 miles south-west) are a reminder that the area around Penton Hook 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.
Schools such as Laleham CofE VA Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Chertsey station, renewing tired window mastic between tenants heads off draught and damp complaints.
Penton Hook is about 2 miles south of Staines-upon-Thames, in Surrey. Our applicators cover window mastic for homes and businesses in Penton Hook, as part of our work across Surrey. Penton Hook is one of 395 places in Surrey we cover. For nearby work, see our London page.
Work in KT16 is quoted and booked the same way as anywhere else. Local streets include Midway Avenue, Bourne Avenue and Albert Avenue. We also cover Thorpe (1 mile west), Staines-upon-Thames (2 miles north), Egham Hythe (2 miles north-west), Thorpe Green (2 miles west) and Stroude (2 miles west). We also work in nearby towns such as Guildford (12 miles south), Woking (7 miles south-west), Camberley (11 miles south-west), Epsom (11 miles south-east), Ewell (11 miles east) and Walton-on-Thames (4 miles east).
Around Penton Hook
We work in homes and buildings around Three Horse Shoes Public House, Penton Park and The Matthew Arnold School. For rail, the closest station is Chertsey station, about 1.5 miles south of the centre. Other landmarks nearby include Runnymede Hospital (2.3 miles south-west) and Spelthorne Museum (1.9 miles north). Green spaces nearby include Fleet Lake and St Ann's Hill.
Looking after it afterwards
After the cure time, these simple habits help:
- Don’t aim a pressure washer at the joints
- Avoid harsh chemicals near the mastic
- Clean frames with a soft cloth and soapy water
- Ventilate rooms so frames don’t stay wet inside
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early, and if anything looks wrong, just ring 0345 464 0079 or email us.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
What we cannot put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Worn gaskets, brush seals or a door that has dropped
- Faulty window hardware
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- uPVC windows
- Composite doors
- Timber windows & doors
- Window sills
- Aluminium frames
- Patio & French doors
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We also work for property managers and facilities teams in Penton Hook and across Surrey. We can quote a run of properties together.