Hampshire · England
Hedge End Sand Mastic
Professional sand mastic in and around Hedge End, with old sealant always removed completely and a one-year guarantee.
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
- A silicone bead on a sash window that spoils the look
Landlords, agents and businesses in Hedge End
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
About our sand mastic in Hedge End
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. Typical jobs include mastic round period door frames that has failed and wind and rain getting in round a sash window, across tenement windows, brick reveals and stone surrounds.
Plenty of homes in a town like Hedge End have had conservatories, patio doors or new windows added over the years. Each one adds more joints to look after, and those joints age at different rates. Sills, frame heads and glazing joints are where leaks usually start.
Whatever the size of the job, it’s backed by our one-year guarantee in Hedge End and across Hampshire.
- Place
- Hedge End (SO30, SO31)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
A few problems are outside what sealant work can do:
- Decisions on consent for listed homes
- Putty and glazing repairs
- Rotten sashes, sills or window boxes (a joiner’s job)
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Timber door frames
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
- Period & listed homes
Quotes for sand mastic in Hedge End
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- How many areas need sealing
- The old material and how stubborn it is
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
What we need to know
You do not need to know the technical terms. Just tell us:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- A few photos by email, if you can
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before work begins.
What we do, step by step
We keep the work tidy and contained to the area we’re working on. The job usually takes anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. For a job in Hedge End, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
- For business premises, tell us about site rules or sign-in
Getting a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
When to call us in Hedge End
Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber, and they usually need raking out.
Common reasons people contact us include:
- Mastic dropping out of the joint
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
- Silicone on a period window that looks wrong
For site and facilities teams at buildings such as Shamblehurst Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What product goes in the joint
- What preparation is included
- How long the guarantee is
- How much experience the applicator has
Hedge End: your questions answered
I let a flat near Hedge End station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Is there a guarantee on sand mastic in Hedge End?
All our work, in Hedge End and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We will tell you what to expect for your job.
Is it OK to seal over old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Are you fully insured?
Yes. We are fully insured, and we can confirm the details when we quote.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Do you work for hotels and businesses?
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.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Hedge End, along with the rest of our area.
Places near Hedge End
Other services in Hedge End
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. Gaps in sealant and mould in the bead never get better on their own, and in a busy home in Hedge End they get worse with every use. Now is the easy time to put it right.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Quality sealants from Arbo and Everbuild
- Experience in homes, commercial sites and hotels
- A 12-month guarantee on all work
- Over 20 years’ experience
See our cost guide and what customers say.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Hedge End homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like South Stoneham House (about 3.5 miles north-west) are a reminder that the area around Hedge End has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Hedge End station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to Church of St John the Evangelist include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Hedge End is about 4 miles east of Southampton, in Hampshire. Hedge End gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Hedge End is one of 683 towns and villages in Hampshire where we work.
Here we cover the SO30 and SO31 postcode area for sand mastic. Streets in the area include Lynton Road, Watts Road and Dean Court. Hedge End sits on or near the A334 and B3033, so getting to you is simple. Other places close to Hedge End include Thornhill (2 miles west), Harefield (2 miles west), West End (2 miles north-west), Chartwell Green (2 miles north-west) and Sholing (3 miles south-west). Larger places within reach include Winchester (10 miles north), Gosport (10 miles south-east), Havant (14 miles east), Eastleigh (4 miles north-west), Fareham (6 miles south-east) and Horndean (13 miles east).
Local landmarks in Hedge End
Typical jobs here are in homes near Wildern School and Wildern School and the streets around them. The closest station to Hedge End is Hedge End station, roughly 1.2 miles north of the centre. Other landmarks nearby include Netley Castle (3.6 miles south-west) and Bursledon Brickworks Industrial Museum (2 miles south). Not far away are Netley Common.