Hampshire · England
Sand mastic for sash & case windows in Kingsmead, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Kingsmead, backed by a one-year guarantee. Call for a quick quote.
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
- Gaps where the frame meets the masonry
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. In a small place like Kingsmead, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- 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.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
Getting a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Related advice
Sand mastic in Kingsmead, done properly
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on tenement windows, timber door frames and sash and case windows, and common reasons people get in touch are tired mastic found when preparing windows for paint and mastic dropping out of the joint.
Somewhere as small as Kingsmead, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee, large or small.
- Where
- Kingsmead (PO17)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need sand mastic in Kingsmead?
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
Keep an eye out for these signs:
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
- Crumbling sand mastic round a window
- Gaps where the frame meets the masonry
Schools such as Swanmore College of Technology are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- How long to leave it before use
- What the quote includes, VAT included or not
- The length of the guarantee
- Are they insured?
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. In a small place like Kingsmead, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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. You will get one clear quote for the whole job.
Why us?
- Anti-fungal sanitary silicone in wet areas
- Over 20 years’ experience
- An ARBOMaster approved applicator
- Full insurance on every job
See our cost guide and what customers say.
How we quote for sand mastic
Jobs vary more than people expect. What affects the quote:
- Access and height
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- How many rooms, windows or areas are involved
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Asking for a quote
To help us quote quickly, let us know:
- Roughly how big the job is
- What’s wrong with the joints now
- Any access issues, like height or stairs
- Where the job is, and your postcode
Getting a quote is simple: let us know what needs doing and where and its rough size. Photos by email help us understand the job.
Also near Kingsmead
More services for Kingsmead
What the job involves on each surface
Stone surrounds
The stone is treated with care when the old mastic comes out.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Sashes that need overhauling
- Putty and glazing repairs
- Whether work needs listed building consent
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Tenement windows
- Sash and case windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Stone surrounds
Questions from Kingsmead
Is Kingsmead within the area you cover?
Yes, Kingsmead is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Kingsmead for sand mastic?
Yes. Our work covers London and the South East, and Kingsmead is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Should I check with the council before work on a listed or conservation-area home?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Do you offer different sealant colours?
Generally, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before we start.
What exactly is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
What sand mastic looks like in Kingsmead
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Botley station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Kingsmead is about 5 miles north of Fareham, in Hampshire. If you need sand mastic in Kingsmead, please call 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Hampshire, Kingsmead included. Kingsmead is one of 683 places in Hampshire where we work. We also work in Portsmouth, about 9 miles from Kingsmead.
Postcode districts we cover here for sand mastic: PO17. Other places close to Kingsmead include Woodend (1 mile east), Mislingford (1 mile north), Shirrell Heath (1 mile west), Soberton Heath (1 mile east) and Shedfield (1 mile west). Within a short drive, we also cover Winchester (12 miles north-west), Gosport (8 miles south), Havant (9 miles south-east), Eastleigh (8 miles north-west), Fareham (5 miles south) and Horndean (7 miles east).
Near you in Kingsmead
Typical jobs here are in homes near The Roebuck pub and the streets around them. Kingsmead’s nearest station is Botley station, about 4 miles west of the centre. A little further out are Bishop's Waltham Museum (3.2 miles north-west) and Knowle Hospital (3.1 miles south-west). Green spaces nearby include Portsdown Hill and St Clair's Meadow.