Hampshire · England
Perham Down Sand Mastic
Sand mastic in Perham Down from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Silicone on a period window that looks wrong
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
Perham Down: your questions answered
Do you cover Perham Down for sand mastic?
Yes. We work across London and the South East, and Perham Down is part of that. 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.
Will you come out to Perham Down?
Yes. Perham Down is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email and let us know what needs doing and where.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first.
Is the work guaranteed?
You get our 12-month guarantee on every job.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Should I check with the council before work on a listed or conservation-area home?
Check with your local planning authority. They’ll tell you if consent is needed.
Sand mastic for homes and businesses in Perham Down
Across Perham Down, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. We are often asked to deal with mastic that needs renewing before redecorating and a silicone bead on a sash window that spoils the look, on tenement windows, sash and case windows and timber door frames.
In a village or hamlet like Perham Down, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Perham Down (SP11)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Perham Down homes and the weather
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as The Wellington Academy are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Grateley station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Perham Down is about 7 miles west of Andover, in Hampshire. Anywhere in SP11, we can carry out sand mastic at your property. Across Hampshire, we cover 683 places, and Perham Down is one of them. There’s also a page for Southampton, roughly 25 miles from Perham Down.
Jobs for sand mastic in SP11 is quoted and booked the same way as anywhere else. Streets in the area include Perth Road, Somme Road and Upnor Close, and we cover them all. We also cover the places around Perham Down: Great Shoddesden (1 mile east), Ludgershall (1 mile north), Tidworth (1 mile west), Kimpton (2 miles south-east) and Shipton Bellinger (3 miles south-west). We also work in nearby towns such as Andover (7 miles east), Whitchurch (13 miles east), East Anton (7 miles east), Picket Piece (8 miles east), Picket Twenty (8 miles east) and Finkley Down (8 miles east).
Landmarks near Perham Down
For rail, the closest station is Grateley station, about 4.9 miles south. Nearby you will also find Ludgershall Castle (1.3 miles north). Green spaces nearby include Quarley Hill.
When to call us in Perham Down
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
It’s worth asking for a quote if you see:
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
For an older house near a landmark such as Church of St James, the joint between an old wall and a newer frame is generally the first place rain gets in.
What your quote should include
- Whether all the old sealant comes out first
- Are they insured?
- How the colour is chosen
- What preparation is included
What we can’t put right
To be straight with you, there are a few things sealant will not fix:
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
- Putty and glazing repairs
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Stone surrounds
- Tenement windows
- Brick reveals
- Sash and case windows
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Look over the window mastic once a year
- Ask the planning authority about consent for listed or conservation-area homes
- Have rotten timber repaired before new mastic goes in
- Plan mastic work ahead of painting
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
What the job involves on each surface
Period and listed homes
A traditional finish suits a period property.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
The process
The work is kept neat and contained to the area we are working on. The job normally takes a few hours per window, depending on the condition of the joints. Somewhere like Perham Down needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- 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.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.
Advice
Towns and villages near Perham Down
Other services in Perham Down
Landlords, agents and businesses in Perham Down
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Why deal with it now?
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. In a small place like Perham Down, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What you get with us
- We leave the area clean and tidy
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
- ARBOMaster approved applicator
Take a look at our cost guide or what customers say.