Portsmouth · England
Sand Mastic in Tipner
Window and door surrounds in Tipner need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Failed mastic on an exposed elevation
- Crumbling sand mastic round a window
- Gaps where the frame meets the masonry
What sand mastic looks like in Tipner
Tipner is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts 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 Portsmouth & Southsea station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Stamshaw Infant Academy are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. In the older streets around St Saviour's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Tipner is about 1 mile north-west of Portsmouth, in Portsmouth. Every kind of property in Tipner is covered for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Tipner is one of 19 towns and villages in Portsmouth we cover.
Every address in PO2 is within our area for sand mastic, from the main roads to the quietest streets. We cover properties on Knox Road, Croft Road and Whaley Road and the roads around them. Tipner is on the M275 and A2047, so it’s easy for us to get to. If you are just outside Tipner, we cover North End (1 mile east), Rudmore (1 mile south-east), Portsmouth (1 mile south-east), Landport (1 mile south) and Hilsea (1 mile north-east).
Local landmarks in Tipner
We work in homes and buildings around St Edmund's Catholic School, Mother Shipton pub and Mayfield School, among other places. Tipner’s nearest station is Portsmouth & Southsea station, roughly 1.4 miles south. Nearby you’ll also find Charles Dickens Birthplace Museum (0.8 miles south) and Portchester Castle (1.8 miles north-west). Open spaces near Tipner include Milton Locks and Portsdown Hill.
Sand mastic in Tipner, done properly
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. We work on sash and case windows, period & listed homes and stone surrounds, and people most often call us about old sand mastic that has cracked, crumbled or fallen out and patchy fillers round a sash window.
Around Tipner, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Tipner (PO2)
- Wider area
- Portsmouth
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Also in Tipner
What affects the quote in Tipner
We don’t publish a price list, because jobs vary so much. What we look at:
- The number of rooms or windows
- How easy the joints are to reach
- The size of the job
- The old material and how stubborn it is
The cost depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- The rough size of the job
- The address or postcode of the job
- Access, such as stairs, a lift or height
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Why act early in Tipner
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Tipner, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why choose Mr Mastic in Tipner
- We leave the area clean and tidy
- Homes, businesses and hotels
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
Read how sealant jobs are priced or our reviews.
Questions from Tipner
Is Tipner within the area you cover?
Yes. Tipner 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.
Is sand mastic in a coastal place like Tipner any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. Timing depends on the weather and the joint.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What sealant work can’t fix
In fairness, some problems need a different trade:
- Whether work needs listed building consent
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Where we work in Tipner
- Stone surrounds
- Timber door frames
- Period & listed homes
- Brick reveals
- Tenement windows
- Sash and case windows
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours for a single window, longer for several, depending on the size of the job. Parking around Tipner is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Related advice
What the job involves on each surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Landlords, agents and businesses in Tipner
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Tipner, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Ask the planning authority about consent for listed or conservation-area homes
- Do not run silicone over sand mastic
- Check the mastic when you check the paintwork
- Ask us before painting near the mastic
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.