Wokingham · England
Cockpole Green Sand Mastic
Professional sand mastic in and around Cockpole Green, with old sealant always removed completely and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
What we do, step by step
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work starts. Most jobs take a few hours for a single window, longer for several. For a village or hamlet like Cockpole Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
Getting a quote
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Advice
Sand mastic for homes and businesses in Cockpole Green
Sand mastic doesn’t last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. We work on sash and case windows, stone surrounds and brick reveals, and the jobs we see most are gaps between timber frames and stone or brick and mastic round period door frames that has failed.
Outdoor sealant needs dry, clean surfaces, so work on frames around Cockpole Green is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our one-year guarantee in Cockpole Green and across Wokingham.
- Location
- Cockpole Green (RG10)
- Wider area
- Wokingham
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Stone surrounds
Stone openings are rarely perfectly straight, so the gap isn’t the same all the way round. We shape it by hand to follow the stone.
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Cockpole Green: your questions answered
Do you cover smaller places like Cockpole Green?
Yes. Cockpole Green is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Shiplake station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
How long does the job take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Is the work guaranteed?
Our one-year guarantee covers every job, sand mastic included.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or send us an email.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Places near Cockpole Green
Also in Cockpole Green
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Frames and glazing around Cockpole Green
Historic houses like Harleyford Manor (about 2.7 miles north-east) are a reminder that the area around Cockpole Green has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Crazies Hill CofE Primary School, the mastic around its windows and doors needs looking after like any other building’s. Homes close to St Paul's Mission Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Cockpole Green is about 5 miles south-west of Marlow, in Wokingham. We carry out sand mastic for homes and businesses in Cockpole Green. Cockpole Green is one of 35 towns and villages in Wokingham where we work for sand mastic. We also work in Reading, about 8 miles from Cockpole Green.
We work across RG10 for sand mastic and the streets around it. If you need sand mastic at a property on Warren Row Road, Hatch Gate Lane and Ashley Hill Place or anywhere close by, we can help. Nearby, we also carry out sand mastic in Bowsey Hill (1 mile south-east), Warren Row (1 mile east), Remenham Hill (1 mile north-west), Wargrave (2 miles south) and Frogmill (2 miles north-east). Further out, we also cover Reading (8 miles south-west), Wokingham (8 miles south), Woodley (5 miles south), Earley (7 miles south-west), Crowthorne (11 miles south) and Lower Earley (7 miles south-west).
Around Cockpole Green
Typical jobs here are in homes near Mill Meadows, among other places. For rail, the closest station is Shiplake station, about 1.7 miles south-west of the centre. Nearby you’ll also find St Mark's Hospital (4.5 miles east) and Frazer Nash Archives (2 miles west). For a walk, there’s Hurley Chalk Pit and Weycock Hill.
Why act early in Cockpole Green
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Older cottages and farmhouses around Cockpole Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts.
Why us?
- Over 20 years’ experience
- We never seal over old sealant
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
Take a look at our cost guide and what customers say.
What we’re called out for in Cockpole Green
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
The problems people generally mention when they call are:
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
If you let a flat or house near Shiplake station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Before you book anyone
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
- Are they insured?
- What happens if the job turns out different
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Putty and glazing repairs
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Tenement windows
- Brick reveals
- Period & listed homes
- Sash and case windows
- Timber door frames
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid patching sand mastic with silicone
- Inspect the joints round the windows every year or so
- Renew mastic before redecorating the windows
- Get any rot dealt with first
Avoid painting over the new mastic, as traditional guidance advises. If you’re redecorating, ask us first.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.