Hampshire · England
Sand mastic for sash & case windows in Ashley Heath, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Ashley Heath, backed by a 12-month guarantee. Call for a quick quote.
- Draughty sash windows at the surround
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
About our sand mastic in Ashley Heath
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you’re dealing with a silicone bead on a sash window that spoils the look and draughty sash windows at the surround, we can help, on tenement windows, period & listed homes and stone surrounds alike.
Houses in smaller places like Ashley Heath 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.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Ashley Heath (BH24)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Ashley Heath
Your quote is based on your job. We look at:
- The old material and how stubborn it is
- How much there is to do
- Any working-time requirements on site
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- Any previous sealing or DIY work
- How we’d reach the joints
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Different surfaces, different methods
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. For a job in Ashley Heath, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- 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 is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Let us know about parking restrictions
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
Read more
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
What we cannot put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Crumbling stone or brickwork round the window
- Decayed frames that need repair
- Sash cords, weights and draught-proofing of the sashes
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Where we work in Ashley Heath
- Brick reveals
- Sash and case windows
- Period & listed homes
- Tenement windows
- Timber door frames
- Stone surrounds
Questions from Ashley Heath
Do you cover smaller places like Ashley Heath?
Yes. Ashley Heath is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with sand mastic in Ashley Heath?
All our work, in Ashley Heath and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Can you match the sealant colour?
In most cases you can choose. We will explain which colours are available and agree one before we start.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Should I use sand mastic or silicone?
We’ll talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Can I add another job to the visit?
Of course. Doing several areas at once is usually more efficient.
Towns and villages near Ashley Heath
Also in Ashley Heath
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
- Do not run silicone over sand mastic
- Sort the mastic before the decorators arrive
Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Frames and glazing around Ashley Heath
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as St Ives Primary & Nursery School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Ashley Heath is in Hampshire. From the centre of Ashley Heath to the outskirts, sand mastic is available for homes and businesses alike. Ashley Heath is one of 683 towns and villages in Hampshire where we work. There’s also a page for Southampton, about 20 miles away.
Every address in BH24 is within our area for sand mastic. We cover properties on Woolsbridge Road, The Glade and Hill Way and the roads around them. If you are just outside Ashley Heath, we cover St Ives (1 mile east), St Leonards (1 mile south), Avon Castle (2 miles south-east) and Matchams (2 miles south-east). We also work in nearby towns such as Lymington (14 miles south-east), New Milton (10 miles south-east), Ringwood (3 miles east), Barton on Sea (10 miles south-east), Ashley (10 miles south-east) and Milford on Sea (13 miles south-east).
Local landmarks in Ashley Heath
Locally, jobs take us to homes and businesses close to Ringwood Waldorf School, Ringwood School and Avon Heath Country Park. A little further out are St Leonard's Hospital (1.6 miles south-west). Open spaces near Ashley Heath include Linbrook Lake and Blashford Lakes.