Hampshire · England
Window Mastic in Lower Common
Window mastic in Lower Common from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic that is falling out in pieces
- Leaking joints at the ends of sills
- White mastic on grey or black frames
How we handle window mastic in Lower Common
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we will tell you. If you have hard, cracked sealant around windows and rushed sealant from a window installation, we can help.
Outdoor sealant needs dry, clean surfaces, so work on frames around Lower Common is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Every job comes with a one-year guarantee, wherever you are in Hampshire.
- Location
- Lower Common (RG27)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Surface 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 check before we reseal.
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Lower Common: your questions answered
Do you cover Lower Common for window mastic?
Yes, Lower Common is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
I let a flat near Crowthorne station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you seal the gap between the frame and the plaster indoors?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
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.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
How do I get a quote for window mastic in Lower Common?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email and let us know what needs doing and where.
What window mastic looks like in Lower Common
With historic houses such as Stratfield Saye House (about 4.3 miles west) nearby, there’s older building stock in the area around Lower Common 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Charles Kingsley's Church of England Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near Crowthorne station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Lower Common is about 3 miles west of Yateley, in Hampshire. Homes, rented property, offices and hotels in Lower Common can book us for window mastic. The work is guaranteed for a year. Our Hampshire coverage runs to 683 places, and Lower Common is one of them. There’s also a page for Reading, roughly 7 miles from Lower Common.
Every address in RG27 is within our area for window mastic, from the main roads to the quietest streets. Local streets include Mud Lane, Lower Common and Warbrook Lane, all of which we cover. Nearby, we also carry out window mastic in Eversley (1 mile north-east), Eversley Centre (1 mile east), Eversley Cross (2 miles east), Finchampstead (2 miles east) and California (2 miles north-east). Further out, we also cover Basingstoke (11 miles south-west), Farnborough (7 miles south-east), Fleet (6 miles south-east), Aldershot (9 miles south-east), Alton (14 miles south) and Yateley (3 miles east).
What’s near Lower Common
Locally, jobs take us to homes and businesses close to Bohunt School Wokingham, White Hart Public House and Shepperlands Farm Nature Reserve. The closest station to Lower Common is Crowthorne station, about 3.5 miles east. A little further out are West Green House Agricultural Museum (3.9 miles south) and Beaumys Castle (4 miles north-west). Green spaces nearby include The Marshes Local Nature Reserve and Horseshoe Lake.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Keep paint and stain on wooden frames in good order
- Use gentle cleaners on frames and sealant
- Paint up to the joint, not over it
- Ventilate rooms so frames do not stay wet inside
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a morning for a couple of windows and a door. Somewhere as small as Lower Common, 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.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
Get a quote
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Related advice
What happens if it’s left?
A quick bead over the top of old mastic looks like an easy fix, but new sealant can’t bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In a small place like Lower Common, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That is why we ask about the job first and give you a clear price before any work starts.
Why book with us
- Quality sealants from Arbo and Everbuild
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
- 12-month guarantee on every job
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
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.
Towns and villages near Lower Common
More services for Lower Common
What affects the quote in Lower Common
The quote reflects the job in front of us. We take into account:
- Any working-time requirements on site
- The product the joint needs
- Any mould that needs treating
- Whether the work is at height
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
Before you ask for a quote, have a think about:
- The rough size of the job
- The problem you’ve noticed
- If someone has resealed it before
- Where the job is, and your postcode
If you’re in Lower Common and need window mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.