Windsor and Maidenhead · England
Burchett's Green External Mastic
External mastic for Burchett's Green, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant pulling away from one side of the joint
- Brick movement joints where the sealant has split
- Movement joints filled with mortar instead of sealant
What affects the quote in Burchett's Green
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The size of the job
- How easy the joints are to reach
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
- Roughly how big the job is
We do not publish a price list, because every job is different. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or email us.
About our external mastic in Burchett's Green
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. We work on copings & trims, render & cladding joints and brickwork movement joints, and common reasons people get in touch are rain getting behind render or cladding at a joint and joints with sealant missing in places.
Around Burchett's Green, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
You are covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Where
- Burchett's Green (SL6)
- Region
- Windsor and Maidenhead
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Burchett's Green
Sealing over the top of old mastic doesn’t hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Where a wall is exposed, as many are in small places like Burchett's Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Burchett's Green
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- Anti-fungal sanitary silicone in wet areas
- ARBOMaster approved applicator
Read what affects the cost and what customers say.
Different surfaces, different methods
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible in all weathers.
Burchett's Green buildings and the weather
Historic houses like Harleyford Manor (about 2.1 miles north) are a reminder that the area around Burchett's Green has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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.
If you live in an older home near Saint John the Evangelist, older walls, gutters and the joints where extensions meet them need a flexible sealant. Schools such as Burchetts Green CofE Infants' School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Burchett's Green is about 3 miles west of Maidenhead, in Windsor and Maidenhead. Wherever you are in the SL6 postcode area, we cover external mastic for homes and businesses. Across Windsor and Maidenhead, we cover 57 places, Burchett's Green among them. There’s also a page for Reading, roughly 10 miles from Burchett's Green.
Every address in SL6 is covered for external mastic. Whether your property is on Burchett's Green Road and Hall Place Lane or a nearby road, our applicators can take on the job. We also cover Holloway (1 mile south-east), Stubbings (1 mile east), Littlewick Green (1 mile south), Woolley Green (1 mile south-east) and Pinkneys Green (1 mile east). Larger places within reach include Maidenhead (3 miles east), Windsor (8 miles south-east), North Ascot (9 miles south-east), Cookham (4 miles north-east), Dedworth (7 miles south-east) and Broomhall (12 miles south-east).
Around Burchett's Green
Around Burchett's Green, our work takes us to homes and buildings near Newlands Girls' School and The Crown pub. The closest station to Burchett's Green is Furze Platt station, about 2.8 miles east. Nearby you will also find Marlow Museum (3.1 miles north) and St Mark's Hospital (2 miles east). Green spaces nearby include Weycock Hill and Taplow Lake.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Burchett's Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
Get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Advice
When to call us in Burchett's Green
Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall.
It’s worth asking for a quote if you see:
- Brick movement joints where the sealant has split
- Plants rooting in failed movement joints
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
For landlords with property near Furze Platt station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- The length of the guarantee
- When the joint can take water or movement
- How the colour is chosen
- Whether all the old sealant comes out first
Common questions in Burchett's Green
Do you cover smaller places like Burchett's Green?
Yes. Burchett's Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Burchett's Green?
Yes. Our work covers London and the South East, and Burchett's Green is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Should I try DIY first?
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.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
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. We can quote a run of properties together.
Towns and villages near Burchett's Green
Other services in Burchett's Green
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.