Bracknell Forest · England
Sand Mastic in Brockhill
Problem with your window and door surrounds in Brockhill? We cut out the old, prepare the joints and apply the right sealant.
- Cracked mastic round a front door frame
- Draughty sash windows at the surround
- Gaps between timber frames and stone or brick
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
If you manage several properties in or around Brockhill, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
How we handle sand mastic in Brockhill
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you’re dealing with mastic that needs renewing before redecorating and old sand mastic that has cracked, crumbled or fallen out, we can help.
Homes in small places like Brockhill 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.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Brockhill (RG42)
- Region
- Bracknell Forest
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Brockhill
Will you come out to Brockhill?
Yes. Brockhill 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.
I let a flat near Martins Heron station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or send us an email.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Are you insured?
Yes, we are fully insured.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sand mastic in Brockhill: local notes
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like St Leonard's Hill (about 3.4 miles north-east) are a reminder that the area around Brockhill has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For an older house near a landmark such as Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Brockhill is about 3 miles north-east of Bracknell, in Bracknell Forest. Brockhill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Bracknell Forest, we cover 41 places, Brockhill among them. For nearby work, see our Reading page, about 11 miles away.
Every address in RG42 is covered for sand mastic. Close by, we work in Maiden's Green (1 mile north-east), Winkfield Street (1 mile north-east), Warfield (1 mile west), Winkfield Row (1 mile south) and Nuptown (1 mile north-west). Within a short drive, we also cover Bracknell (3 miles south-west), Sandhurst (7 miles south-west), Binfield (3 miles west), Great Hollands (4 miles south-west), Forest Park (3 miles south) and Temple Park (3 miles south-west).
What’s near Brockhill
Around Brockhill, our work takes us to homes and buildings near The Winning Post pub, Winkfield St Mary's CofE Primary School and Garth Hill College, among other places. The closest station to Brockhill is Martins Heron station, about 2.3 miles south of the centre. Nearby you will also find Heatherwood Hospital (2.4 miles south-east) and The Lexicon (2.2 miles south-west). Green spaces nearby include Bray Pit.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Brockhill, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Why book with us
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
- One-year guarantee on every job
- We’re fully insured
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Avoid patching sand mastic with silicone
- Go gently near the mastic when preparing windows
- Have rotten timber repaired before new mastic goes in
- Check the mastic when you check the paintwork
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
What we do, step by step
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Brockhill, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Keep children and pets away from the work area
How to get a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details.
Advice
Nearby places to Brockhill
What else we do in Brockhill
Signs you need sand mastic in Brockhill
Timber frames move with the seasons. That movement opens up the mastic joint over time.
Common reasons people contact us are:
- Old cement repairs round a window that have failed
- Gaps where the frame meets the masonry
- Silicone on a period window that looks wrong
- Cracked mastic round a front door frame
Rented homes near Martins Heron station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- Whether you can choose the colour
- Is VAT in the price?
- What the cure time is
- The length of the guarantee
How the job changes by surface
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.