West Berkshire · England
Sand Mastic in Wash Common
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Wash Common. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
How we handle sand mastic in Wash Common
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on timber door frames, tenement windows and stone surrounds, and common reasons people get in touch are mastic dropping out of the joint and cement or filler used on old window joints that has cracked.
Houses in smaller places like Wash Common can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That is hard on the mastic around frames and sills.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.

- Where
- Wash Common (RG14, RG20)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Wash Common: your questions answered
I let a flat near Newbury station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Will you come out to Wash Common?
Yes. Wash Common is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
How long does sand mastic take to go off?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
What guarantee comes with the work?
You get our 12-month guarantee to all our work.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses.
How long does the job take?
That depends on the amount of work, but most jobs take a few hours for a single window, longer for several. We will give you a better idea when we quote.
Should I use sand mastic or silicone?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames generally get a flexible sealant.
Why deal with it now?
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a smaller place like Wash Common, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- Domestic, commercial and hotel work
Take a look at what affects the cost or what customers say.
What affects the quote in Wash Common
We quote each job individually. This is what makes a difference:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.
Helping us quote
Photos help, but a description is a good start. Please mention:
- The problem you’ve noticed
- Where the job is, and your postcode
- Whether it’s a home or a business
- Any previous sealing or DIY work
If you are in Wash Common and need sand mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Common problems we fix in Wash Common
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Most people get in touch after spotting something like this:
- Cement or filler used on old window joints that has cracked
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
- Mastic that needs renewing before redecorating
If you look after a building such as Falkland Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Is the old sealant removed completely?
- What product goes in the joint
- Is VAT in the price?
- When the joint can take water or movement
How the job changes by surface
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Honest limits
It helps to know what we cannot do:
- Decisions on consent for listed homes
- Masonry that needs repairing
- Sash cords, weights and draught-proofing of the sashes
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
What we seal
- Stone surrounds
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Timber door frames
How it works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours for a single window, longer for several. Parking around Wash Common is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or email us.
Advice
Frames and glazing around Wash Common
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. Historic houses like Benham Park (about 2.4 miles north-west) are a reminder that the area around Wash Common has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Newbury station, any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near St Luke Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Wash Common is about 2 miles south-west of Newbury, in West Berkshire. Every kind of property in Wash Common can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Wash Common is one of 155 places in West Berkshire where we work. There’s also a page for Reading, roughly 17 miles from Wash Common.
Jobs for sand mastic in RG14 and RG20 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Battle Road, Stuart Road and Warren Road or a nearby road, our applicators can take on the job. Other places close to Wash Common include Wash Water (1 mile south-west), Enborne Row (1 mile south-west), Skinners Green (1 mile north-west), Newtown Common (1 mile south-east) and Sandleford (1 mile east). We also work in nearby towns such as Thatcham (4 miles north-east), Burghfield Common (12 miles east), Hungerford (8 miles west), Calcot (14 miles east), Lambourn (12 miles north-west) and Shaw (3 miles north-east).
Local landmarks in Wash Common
Locally, jobs take us to homes and businesses close to Horris Hill School, Park House School and The Gun pub. The nearest railway station is Newbury station, about 1.8 miles north-east of the centre. Other landmarks nearby include British Balloon Museum & Library Ltd (2 miles north-east) and Hamstead Marshall 2 (2.7 miles north-west). Green spaces nearby include Sidown Hill and Audrey's Meadow.
