West Berkshire · England
Window & door mastic in Wellhouse, West Berkshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Wellhouse and across West Berkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
- A bead that does not match the frame
Window mastic in Wellhouse
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include rain getting in at the frame or under the sill and draughty joints inside around the window, on window sills, uPVC windows and composite doors.
Somewhere as small as Wellhouse, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
A one-year guarantee comes as standard.
- Where
- Wellhouse (RG18)
- Wider area
- West Berkshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When it is not the sealant
To be straight with you, some problems need a different trade:
- Broken hinges, locks or handles
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Patio & French doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
Other services in Wellhouse
How the job changes by surface
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 look for the cause first.
Composite doors
Front doors take the weather head on. We pay most attention there.
Your questions about window mastic in Wellhouse
I let a flat near Thatcham station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you do window mastic in Wellhouse?
Yes. Our work covers London and the South East, and Wellhouse is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Are you insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Will resealing my frames help with draughts?
In many cases. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
What does window mastic cost?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Where are you based?
We work from Crawley. We cover Wellhouse and the rest of West Berkshire, along with the rest of our area.
Landlord and commercial work in Wellhouse
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Wellhouse, several properties can be quoted together. Just tell us the addresses and what each one needs.
Can I do it myself?
If you’re 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 does not work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What happens on the day
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. Somewhere as small as Wellhouse, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- 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.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Move anything stored near the joints
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before we start.
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When to call us in Wellhouse
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
The most common problems we see are:
- Cracked sealant at the sill ends
- Black, perished sealant on frames
- A bead that doesn’t match the frame
- Cracked or shrunken mastic around the frame
In the older streets around Church of St Mary, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- Whether they seal over old material or remove it
- What product goes in the joint
- What the quote includes, VAT included or not
- What happens if the job turns out different
Aftercare tips
To keep the joints looking good and working properly:
- Avoid blasting the frames with a pressure washer
- Air rooms to keep condensation down around windows
- Keep timber frames painted
- Do not paint over the silicone
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
What window mastic looks like in Wellhouse
With historic houses such as Shaw House (about 3.7 miles south-west) nearby, there’s older building stock in the area around Wellhouse 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. Compared with the north and west, the South East gets less rain, 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 Hermitage Primary School, the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Thatcham station, renewing tired window mastic between tenants heads off draught and damp complaints.
Wellhouse is about 3 miles north of Thatcham, in West Berkshire. Homes, rented property, offices and hotels in Wellhouse is covered for window mastic. Every job comes with our 12-month guarantee. 155 places in West Berkshire are on our list, from the larger towns to small villages. You can also see our page for Reading, roughly 12 miles from Wellhouse.
We work across the RG18 postcode area for window mastic and the streets around it. Neighbouring places we cover for window mastic include Hermitage (1 mile west), Little Hungerford (1 mile north-west), Oare (1 mile north-west), Longlane (1 mile west) and Cold Ash (2 miles south). Larger places within reach include Newbury (5 miles south-west), Thatcham (3 miles south), Burghfield Common (9 miles south-east), Speenhamland (4 miles south-west), Hungerford (12 miles west) and Spencers Wood (13 miles east).
Landmarks near Wellhouse
Locally, jobs take us to homes and businesses close to The White Horse pub. The closest station to Wellhouse is Thatcham station, about 3.9 miles south of the centre. Nearby you’ll also find Hampstead Norris Castle (2.2 miles north) and West Berkshire Community Hospital (3.4 miles south-west). For a walk, there’s Nature Discovery Centre.