West Berkshire · England
Window & door mastic in North Heath, West Berkshire
Professional window mastic in and around North Heath, with every bit of old sealant taken out first.
- Draughty joints inside around the window
- Gaps left after new windows were fitted
- Draughts coming in around windows and doors
Window mastic in North Heath
Colour matters on a frame. We can seal in white, brown, anthracite grey, black or clear, so the bead blends with the window rather than framing it. We work on uPVC windows, timber windows & doors and composite doors, and people most often call us about hard, cracked sealant around windows and white mastic on grey or black frames.
Homes in small places like North Heath often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You get a one-year guarantee, the same in North Heath as everywhere else we work.

- Location
- North Heath (RG20)
- Region
- West Berkshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What we are called out for in North Heath
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The problems people normally mention when they call are:
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
- Draughts coming in around windows and doors
- Cracked or shrunken mastic around the frame
Homes close to Church of St Mary include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
What to look for in a quote
- How the surfaces are prepared before sealing
- What insurance they hold
- What product goes in the joint
- The length of the guarantee
Places near North Heath
What else we do in North Heath
North Heath homes and the weather
With historic houses such as Shaw House (about 3.8 miles south) nearby, there’s older building stock in the area around North Heath as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
For site and facilities teams at buildings such as Chieveley Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Newbury station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
North Heath is about 5 miles north of Newbury, in West Berkshire. From the centre of North Heath to the outskirts, we cover window mastic for every kind of property. North Heath is one of 155 towns and villages in West Berkshire we cover for window mastic. Reading is on our list too, about 16 miles from North Heath.
Work in RG20 works the same way as everywhere else we cover. We also cover the places around North Heath: Chieveley (1 mile east), Downend (1 mile north-east), Winterbourne (2 miles south), Leckhampstead (2 miles north-west) and Peasemore (2 miles north). Further out, we also cover Newbury (5 miles south), Thatcham (6 miles south-east), Burghfield Common (13 miles east), Speenhamland (4 miles south), Hungerford (9 miles south-west) and Calcot (12 miles east).
Landmarks near North Heath
We work in homes and buildings around The Wheatsheaf pub, among other places. The closest station to North Heath is Newbury station, roughly 4.8 miles south of the centre. Other landmarks nearby include Donnington Castle (3.2 miles south) and West Berkshire Community Hospital (4.6 miles south-east). Not far away are Snelsmore Common.
DIY versus a professional finish
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.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Your questions about window mastic in North Heath
Can you do window mastic in North Heath?
Yes, North Heath is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Is North Heath within the area you cover?
Yes, North Heath is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
What information do you need?
Tell us what needs doing and where. If we need more, we’ll ask.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Don’t paint over the silicone
- Look round the frames every year or so
- Avoid harsh chemicals near the mastic
- Repaint timber before it’s bare
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
The process
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a handful of frames, longer for a whole house. In a small place like North Heath, 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.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Clear the area around the work
- Mention any tricky access
- Keep children and pets away from the work area
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Worn gaskets, brush seals or a door that has dropped
- Faulty window hardware
- Rotten timber, which needs a joiner first
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Window sills
What the job involves on each surface
Composite doors
Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We’ll tell you if that’s what we find.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall and tooled smooth.
