Hampshire · England
Window Mastic in Romsey
Window and door frames in Romsey need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Leaking joints at the ends of sills
- Mastic that has split away from the wall
- Rushed sealant from a window installation
How we handle window mastic in Romsey
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you have white mastic on grey or black frames and draughts coming in around windows and doors, we can put it right.
In a town like Romsey, older houses sit alongside newer estates, with windows of every age. In every case, the joint between frame and wall is what keeps water out.
Whatever the size of the job, it’s backed by our 12-month guarantee in Romsey and across Hampshire.
- Place
- Romsey (SO51)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
For anyone letting property in or around Romsey, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Places near Romsey
What else we do in Romsey
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Keep paint and stain on wooden frames in good order
- Keep jet washers away from the mastic
- Clean frames with a soft cloth and soapy water
- Check the mastic once a year
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Quotes for window mastic in Romsey
We don’t publish a price list, because no two jobs are the same. What we look at:
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- Access and height
- How many areas need sealing
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Photos by email, if that is easy
Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. We will explain what we’d do and send you a clear quote before any work starts.
Romsey homes and the weather
With historic houses such as Mottisfont Abbey (about 4 miles north-west) nearby, there’s older building stock in the area around Romsey as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
In the older streets around St Swithun's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Romsey station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Romsey is about 6 miles west of Eastleigh, in Hampshire. Romsey gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Hampshire, we cover 683 places, Romsey among them. There’s also a page for Southampton, roughly 6 miles from Romsey.
Work in SO51 works the same way as everywhere else we cover. If you need window mastic at a property on Station Road, Corn Market and Ashley Meadows or anywhere close by, our applicators can take on the job. Main roads around Romsey include the A27 and A3057, so getting to you is simple. Other places close to Romsey include North Baddesley (2 miles south-east), Toothill (2 miles south), Ashfield (2 miles south), Lee (2 miles south) and Upton (3 miles south). Larger places within reach include Winchester (8 miles north-east), Eastleigh (6 miles east), Andover (15 miles north), Totton (5 miles south), Chandler's Ford (4 miles east) and Hedge End (9 miles south-east).
Landmarks near Romsey
We work in homes and buildings around The Mountbatten School, Bishop Blaize Public House and The Romsey School. The closest station to Romsey is Romsey station, about 0.5 miles west of the centre. Well-known places in the area include Romsey Community Hospital (within half a mile south) and King Johns House (0.8 miles west). Green spaces nearby include Emer Bog and Baddesley Common.
The process
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it normally takes most of a day for a typical house, less for a few frames. Parking in a town like Romsey is usually straightforward, but tell us if there’s a driveway or any restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
- On commercial sites, let us know about site rules
How to get a quote
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Related advice
Questions from Romsey
Do you cover Romsey for window mastic?
Yes. Our work covers London and the South East, and Romsey is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Is there a guarantee on window mastic in Romsey?
All our work, in Romsey and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used before we leave.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
What we are called out for in Romsey
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The most common problems we see are:
- Hard, cracked sealant around windows
- Leaking joints at the ends of sills
- Sealant in the wrong colour for the frame
- Untidy mastic left by window fitters
For site and facilities teams at buildings such as Romsey Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- The length of the guarantee
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
- What happens if the job turns out different
Leave it or put it right?
Resealing frames is a short job: it takes a few hours for a handful of frames, longer for a whole house. Wait for damp to appear and there may be plaster and decorating to sort out too. Black mould and gaps in sealant don’t fix themselves, and in a busy household in Romsey they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why book with us
- Sealant colour chosen to suit
- Quality sealants from Arbo and Everbuild
- Anti-fungal sanitary silicone in wet areas
- 20+ years of sealant experience
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Condensation trapped between the panes
- Draughts through the window seals rather than the frame
- Faulty window hardware
If you’re not sure, just phone 0345 464 0079 or email us and we will give you a straight answer before booking.
Where we work in Romsey
- Window sills
- Composite doors
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- uPVC windows