Hampshire · England
Sand Mastic in Amport
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Amport, backed by a one-year guarantee. Ask us for a quote.
- Weathered mastic on the most exposed windows
- Wind and rain getting in round a sash window
- Cracked mastic round a front door frame
How we handle sand mastic in Amport
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. We work on timber door frames, period & listed homes and stone surrounds, and the jobs we see most are crumbling sand mastic round a window and mastic worn away on windows facing the weather.
Outdoor sealant needs dry, clean surfaces, so work on frames around Amport is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Each job carries a 12-month guarantee.
- Place
- Amport (SP11)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for sand mastic
Your quote is based on your job. We look at:
- Which sealant suits the joint
- The size of the job
- How many areas need sealing
- How much old sealant there is and how hard it is to remove
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The type of property
- Whether it has been sealed before
- Where the job is, and your postcode
- Pictures of the joints, sent by email
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Towns and villages near Amport
What else we do in Amport
Common questions in Amport
Do you cover smaller places like Amport?
Yes, Amport is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Amport in your area for sand mastic?
Yes, Amport is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords and businesses?
Yes. Domestic, commercial and hotel work are all part of what we do.
Which is right for my windows, sand mastic or modern sealant?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames normally get a flexible sealant.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Is consent needed for window work on a listed home?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Get any rot dealt with first
- Find out about consent before window work on a listed home
- Leave the new mastic unpainted
- Renew mastic before redecorating the windows
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
When to call us in Amport
Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
The problems people usually mention when they call are:
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
- Modern sealant on a period surround
- Gaps where the frame meets the masonry
In the older streets around Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before you book
- Which colour the sealant will be
- Whether the sealant suits the joint
- How long the guarantee is
- Whether all the old sealant comes out first
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours for a single window, longer for several. In a small place like Amport, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Advice
Amport homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Grateley station, any sash windows need sound mastic to keep draughts and rain out. Managing a site like Amport Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Amport is about 4 miles west of Andover, in Hampshire. We provide sand mastic to householders, landlords and businesses in Amport and the surrounding area, as part of our work across Hampshire. Amport is one of 683 places in Hampshire we cover. For nearby work, see our Southampton page.
Here we cover the SP11 postcode area for sand mastic. Neighbouring places we cover for sand mastic include Fox (1 mile south-west), Monxton (1 mile east), Abbotts Ann (2 miles east), Little Ann (2 miles east) and Kentsboro (3 miles south). Further out, we also cover Winchester (15 miles south-east), Andover (4 miles east), Romsey (15 miles south), Hyde (14 miles south-east), Tidworth (5 miles north-west) and Weeke (14 miles south-east).
Local landmarks in Amport
In Amport, that means homes and buildings near White Horse Inn. For rail, the closest station is Grateley station, about 2.7 miles south-west of the centre. A little further out are Ludgershall Castle (4.8 miles north-west) and Andover War Memorial Hospital (3.7 miles east). For a walk, there’s Mill Lake and Quarley Hill.
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
What we cannot put right
We will always be straight with you, so here’s what new sealant will not do:
- Planning or listed building consent (your local planning authority decides)
- Damaged stone surrounds
- Timber that has rotted
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Sash and case windows
Landlords, agents and businesses in Amport
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.