Hampshire · England
Hillstreet Sand Mastic
Problem with your window and door surrounds in Hillstreet? We cut out the old, prepare the joints and apply the right sealant.
- Draughty sash windows at the surround
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
How we handle sand mastic in Hillstreet
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties where a modern sealant bead would stand out. Common call-outs are for mastic that needs renewing before redecorating and gaps round a timber door in stone or brick, on brick reveals, period & listed homes and timber door frames.
In a village or hamlet like Hillstreet, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Hillstreet (SO40)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work cannot fix
To be straight with you, there are a few things sealant will not fix:
- Broken panes
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Tenement windows
- Timber door frames
- Brick reveals
- Period & listed homes
- Stone surrounds
- Sash and case windows
How the job changes by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Also near Hillstreet
More services for Hillstreet
Quotes for sand mastic in Hillstreet
Call for a quick quote. What matters most is:
- How easy the joints are to reach
- The old material and how stubborn it is
- The product the joint needs
- Any mould that needs treating
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
Before you ask for a quote, have a think about:
- A few photos by email, if you can
- Where the job is, and your postcode
- The problem you’ve noticed
- Whether it has been sealed before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Landlords, agents and businesses in Hillstreet
Landlords and agents in Hillstreet can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Hillstreet: your questions answered
Will you come out to Hillstreet?
Yes. Hillstreet is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Totton station?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Are you insured?
Yes. We are fully insured.
Is sand mastic better than silicone for my windows?
That depends on your windows. On many period windows, sand mastic looks right and suits the building and newer frames generally get a flexible sealant.
Can you match the sealant colour?
Generally, yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
Sand mastic in Hillstreet: local notes
Hillstreet is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Rented homes near Totton station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to St Anne's include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Calmore Junior School? Then its window and door frames need their mastic kept sound, just like a home’s.
Hillstreet is about 2 miles north of Totton, in Hampshire. We carry out sand mastic for homeowners, landlords and businesses in Hillstreet and the surrounding area. 683 places in Hampshire are on our list, large and small. There’s also a page for Southampton, about 6 miles away.
Our applicators cover all of SO40 for sand mastic. Close by, we work in Ower (1 mile west), Wigley (1 mile north-west), Totton (2 miles south), Winsor (2 miles south-west) and Netley Marsh (2 miles south). Further out, we also cover Winchester (12 miles north-east), Eastleigh (8 miles east), Fareham (15 miles south-east), Chandler's Ford (6 miles north-east), Hedge End (9 miles east) and Lymington (13 miles south).
Near you in Hillstreet
The closest station to Hillstreet is Totton station, roughly 2.3 miles south-east of the centre. Well-known places in the area include Tatchbury Mount Hospital (1.1 miles south-west) and Eling Experience (2 miles south-east). Green spaces nearby include Testwood Lakes.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep modern sealant off the mastic
- Make sure water runs off the sill
- Get any rot dealt with first
- Don’t paint over the new mastic
Do not touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
What we do, step by step
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere like Hillstreet needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
Getting a quote
If you’re in Hillstreet and need sand mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.