West Berkshire · England
Fair Cross Sand Mastic
Specialist sand mastic for Fair Cross: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Draughty sash windows at the surround
- Open joints round the window box
- Mastic round period door frames that has failed
Surface by surface
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.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
About our sand mastic in Fair Cross
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. We work on stone surrounds, brick reveals and timber door frames, and common reasons people get in touch are wind and rain getting in round a sash window and patchy fillers round a sash window.
In a village or hamlet like Fair Cross, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All our work comes with our 12-month guarantee.
- Location
- Fair Cross (RG7)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Fair Cross
More services for Fair Cross
Signs you need sand mastic in Fair Cross
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Look out for these signs:
- Modern sealant on a period surround
- Failed mastic on an exposed elevation
- Window mastic to renew ahead of painting
- Crumbling sand mastic round a window
For landlords with property near Mortimer station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Questions to ask before you book
- Whether they seal over old material or remove it
- What the cure time is
- What insurance they hold
- Whether the sealant suits the joint
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 generally takes a few hours per window, depending on the condition of the joints. In a small place like Fair Cross, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Clear the area around the work
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Read more
FAQs for Fair Cross
I let a flat near Mortimer station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Fair Cross?
Yes, Fair Cross is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
What guarantee comes with the work?
All our work has a one-year guarantee, and we’re fully insured.
Is sand mastic better than silicone for my windows?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames usually get a flexible sealant.
Can you replace silicone on a period window with sand mastic?
Usually, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
What sealant work cannot fix
To be straight with you, there are a few things sealant will not fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Cracked or broken glass
- Masonry that needs repairing
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Fair Cross
- Tenement windows
- Stone surrounds
- Brick reveals
- Period & listed homes
- Timber door frames
- Sash and case windows
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Fair Cross homes and the weather
With historic houses such as Stratfield Saye House (about 0.7 miles south) nearby, there’s older building stock in the area around Fair Cross as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
If you live in an older home near Church of St. Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Fair Cross is about 6 miles east of Tadley, in West Berkshire. Whether you’re in the middle of Fair Cross or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Fair Cross is one of 155 places in West Berkshire where we work for sand mastic. Our Reading page covers work nearby.
Jobs for sand mastic in RG7 is quoted and booked the same way as anywhere else. If you are just outside Fair Cross, we cover Stratfield Saye (1 mile south-west), West End Green (2 miles west), Stratfield Mortimer (2 miles north-west), Spanish Green (2 miles south) and Wokefield (3 miles north-west). Within a short drive, we also cover Newbury (14 miles west), Thatcham (11 miles west), Burghfield Common (4 miles north-west), Speenhamland (14 miles west), Spencers Wood (3 miles north-east) and Calcot (6 miles north).
Around Fair Cross
For rail, the closest station is Mortimer station, roughly 1.7 miles north-west of the centre. A little further out are Beaumys Castle (1.5 miles north-east). Open spaces near Fair Cross include Longwater and The Marshes Local Nature Reserve.
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- The old material and how stubborn it is
- Whether the work is at height
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- Whether it has been sealed before
- Pictures of the joints, sent by email
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Why it’s worth doing now in Fair Cross
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Around Fair Cross, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
Why choose Mr Mastic in Fair Cross
- Quality sealants from Arbo and Everbuild
- We’re fully insured
- Every job guaranteed for a year
- 4.9 on Google from 180+ five-star reviews
See what affects the cost or our reviews.