Reading · England
Whitley Sand Mastic
Sand mastic across Whitley and nearby, with old sealant always removed completely.
- Tired mastic found when preparing windows for paint
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Sashes that need overhauling
- Decayed frames that need repair
- Damaged stone surrounds
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before booking.
What we seal
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
How we handle sand mastic in Whitley
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on brick reveals, tenement windows and period & listed homes, and common reasons people get in touch are mastic that needs renewing before redecorating and old cement repairs round a window that have failed.
Houses in smaller places like Whitley can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
All of our work is guaranteed for twelve months, in Whitley and everywhere else we cover.
- Place
- Whitley (RG2, RG1, RG19)
- Wider area
- Reading
- Cover
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
What happens on the day
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. Most jobs take anything from a few hours to a full day, depending on how many windows. A visit to Whitley is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
FAQs for Whitley
I let a flat near Reading Green Park station. Can you help?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Is Whitley in your area for sand mastic?
Yes, Whitley is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
How do I get a quote for sand mastic in Whitley?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then phone 0345 464 0079 or drop us an email.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Where is Mr Mastic based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
When to call us in Whitley
Timber frames move with the seasons. That movement opens up the mastic joint over time.
Most people get in touch when they notice something like this:
- Window mastic to renew ahead of painting
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
- Wind and rain getting in round a sash window
For landlords with property near Reading Green Park station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Before booking anyone
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
- The length of the guarantee
- How the joint is cleaned and prepared
Keeping the joints in good condition
After the cure time, these simple habits help:
- Look over the window mastic once a year
- Go gently near the mastic when preparing windows
- Clear gutters so water does not pour onto the windows
- Don’t run silicone over sand mastic
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
Nearby places to Whitley
Other services in Whitley
Whitley homes and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as John Madejski Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. In the older streets around St Agnes, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Whitley is about 1 mile west of Earley, in Reading. Wherever you are in the RG2 postcode area, we can carry out sand mastic at your property. Our Reading coverage runs to 34 places, Whitley among them.
Work in RG2, RG1 and RG19 works the same way as everywhere else we cover. Whether your property is on Litton Road, Totnes Road and Winton Road or a nearby road, our applicators can take on the job. Nearby, we also carry out sand mastic in Whitley Wood (1 mile south), Earley (1 mile east), Green Park (1 mile west), Great Lea Common (1 mile south-west) and Reading (2 miles north-west). We also work in nearby towns such as Caversham (3 miles north), Norcot (4 miles north-west), Tilehurst Within (4 miles north-west), Arborfield Garrison (4 miles south-east), Caversham Heights (4 miles north) and Horncastle (3 miles north-west).
Landmarks near Whitley
Around Whitley, our work takes us to homes and buildings near World Turned Upside Down pub, Whitley Park Primary and Nursery School and Pearman's Copse and the streets around them. Other local landmarks include Crosfields School (0.7 miles south-east) and University of Reading library (1.1 miles north-east). Whitley’s nearest station is Reading Green Park station, roughly 1.7 miles west. Well-known places in the area include Royal Berkshire Hospital (1.6 miles north) and The Oracle (1.8 miles north). For a walk, there’s Fobney Island Wetland Reserve and Sonning Hill.
Why act early in Whitley
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. Around Whitley, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why book with us
- Old sealant always removed completely
- Quality sealants from Arbo and Everbuild
- Fully insured
- Over 20 years’ experience
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.