Hampshire · England
Sand mastic for sash & case windows in Houghton, Hampshire
Sand mastic for Houghton and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
Surface by surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Sand mastic in Houghton, done properly
We work across Houghton renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand for a neat, traditional finish. If you’re dealing with patchy fillers round a sash window and mastic worn away on windows facing the weather, we can help, on timber door frames, sash and case windows and brick reveals alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Houghton is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Place
- Houghton (SO20)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Houghton
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Older cottages and farmhouses around Houghton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Houghton
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
- A 12-month guarantee on all work
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Also near Houghton
What else we do in Houghton
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. In a small place like Houghton, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Let us know about earlier repairs to the joints
- Clear the area around the work
- For indoor joints, keep the area dry beforehand if you can
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Related advice
For landlords and businesses
For anyone letting property in or around Houghton, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Your questions about sand mastic in Houghton
Do you work for landlords with property near Mottisfont & Dunbridge station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Is Houghton in your area for sand mastic?
Yes, Houghton is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses and we are fully insured.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Should I check with the council before work on a listed or conservation-area home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Sashes that need overhauling
- Broken panes
- Crumbling stone or brickwork round the window
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
- Timber door frames
When to call us in Houghton
Timber frames move with the seasons. The movement cracks the mastic over time.
If you can see any of these, it’s time to have the joints looked at:
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
- Draughty sash windows at the surround
Rented homes near Mottisfont & Dunbridge station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Before booking anyone
- Who does the work, and how experienced they are
- Whether VAT is included
- The length of the guarantee
- How the joint is cleaned and prepared
Sand mastic in Houghton: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Mottisfont Abbey (about 3.2 miles south) nearby, there’s older building stock in the area around Houghton as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In the older streets around Church of All Saints, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like Test Valley School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Houghton is about 6 miles north of Romsey, in Hampshire. From the centre of Houghton to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Houghton is one of 683 places in Hampshire where we work. There’s also a page for Southampton, about 13 miles away.
Our applicators cover all of SO20 for sand mastic. If you need sand mastic at a property on Kents Orchard, Houghton Farm Close and Stevens Drove or a nearby road, our applicators can take on the job. We also cover the places around Houghton: Horsebridge (1 mile south-east), Broughton (2 miles west), Stonymarsh (3 miles south), Mottisfont (3 miles south) and Michelmersh (4 miles south). Within a short drive, we also cover Winchester (9 miles east), Eastleigh (11 miles south-east), Andover (9 miles north), Totton (12 miles south), Chandler's Ford (9 miles south-east) and Hedge End (15 miles south-east).
Local landmarks in Houghton
We work in homes and buildings around The Boot Inn, among other places. The closest station to Houghton is Mottisfont & Dunbridge station, about 3.8 miles south.