West Berkshire · England
West Ilsley Sand Mastic
Problem with your window and door surrounds in West Ilsley? We remove the old material, prepare the joints and seal them properly.
- Mastic that needs renewing before redecorating
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
What happens if it’s left?
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. Older cottages and farmhouses around West Ilsley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in West Ilsley
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
- We never seal over old sealant
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced or our reviews.
About our sand mastic in West Ilsley
We work across West Ilsley renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you have open joints round the window box and patchy fillers round a sash window, we can help, on timber door frames, period & listed homes and sash and case windows alike.
Mastic can only go onto a dry, clean joint, so window work in West Ilsley is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Where
- West Ilsley (RG20)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Also near West Ilsley
More services for West Ilsley
Questions from West Ilsley
Do you cover West Ilsley for sand mastic?
Yes. We work across London and the South East, and West Ilsley is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Is sand mastic in West Ilsley guaranteed?
All our work, in West Ilsley and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or drop us an email.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover West Ilsley, along with the rest of our area.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
How long does sand mastic take to harden?
Not straight away. The skin forms first, and the full set comes later and we will give you an idea for your job.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
The process
Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours per window, depending on the condition of the joints. Somewhere as small as West Ilsley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Try not to wet indoor joints just before the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
Getting a quote
If you are in West Ilsley and need sand mastic, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Advice
What the job involves on each surface
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
Period and listed homes
Period homes look their best with traditional materials.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Ask us before painting near the mastic
- Inspect the joints round the windows every year or so
- Keep modern sealant off the mastic
- Get any rot dealt with first
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
When something else is needed
We’ll always be straight with you, so here’s what new sealant won’t do:
- Planning or listed building consent (your local planning authority decides)
- Decayed frames that need repair
- Broken panes
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in West Ilsley
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
- Timber door frames
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
West Ilsley homes and the weather
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.
Around West Ilsley, as everywhere, sand mastic is only as good as the preparation behind it. In the older streets around Church of All Saints, the joint between an old wall and a newer frame is normally the first place rain gets in.
West Ilsley is about 6 miles south-west of Didcot, in West Berkshire. For sand mastic in and around West Ilsley, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We are based in Crawley and cover West Berkshire. West Ilsley is one of 155 places in West Berkshire we cover for sand mastic. For nearby work, see our Oxford page (15 miles or so).
We cover every part of the RG20 postcode area for sand mastic. Local streets include Bury Lane and Churchway, and we cover them all. If you’re just outside West Ilsley, we cover Catmore (2 miles south-west), Stanmore (2 miles south), Farnborough (3 miles west), Brightwalton (4 miles south-west) and Brightwalton Green (4 miles south-west). Larger places within reach include Newbury (10 miles south), Thatcham (10 miles south), Burghfield Common (15 miles south-east), Speenhamland (9 miles south), Hungerford (12 miles south-west) and Calcot (13 miles south-east).
Around West Ilsley
We work in homes and buildings around The Harrow pub, among other places. Well-known places in the area include Atlas Computer Laboratory (2.4 miles north). Not far away are Mowbray Fields and Churn Hill.