Hampshire · England
Colbury Window Mastic
Window mastic for Colbury and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- White mastic on grey or black frames
- Untidy mastic left by window fitters
- Gaps between the frame and the inside reveal
Frames and glazing around Colbury
Colbury is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Historic houses like Southampton Tudor House and Garden (about 4.3 miles east) are a reminder that the area around Colbury 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.
If you live in an older home near Colbury Christ Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Foxhills Infant School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Ashurst New Forest station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Colbury is about 1 mile south of Totton, in Hampshire. Wherever you are in the SO40 postcode area, we cover window mastic for homes and businesses. Colbury is one of 683 places in Hampshire where we work.
Jobs for window mastic in SO40 works the same way as everywhere else we cover. If you are just outside Colbury, we cover Ashurst (1 mile west), Lyndhurst (4 miles south-west), Emery Down (4 miles south-west), Balmerlawn (6 miles south-west) and Brockenhurst (6 miles south-west). Further out, we also cover Winchester (14 miles north-east), Eastleigh (8 miles north-east), Fareham (14 miles east), Chandler's Ford (8 miles north-east), Hedge End (9 miles east) and Lymington (10 miles south).
Around Colbury
Locally, jobs take us to homes and businesses close to Hounsdown School and The Forest Inn. Colbury’s nearest station is Ashurst New Forest station, roughly 1.2 miles south-west of the centre. Nearby you will also find Ashurst Hospital (1 mile south-west) and National Dairy Museum (less than half a mile south). For a walk, there’s Testwood Lakes.
Window mastic for homes and businesses in Colbury
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for water coming in at the bottom corners of a door and gaps left after new windows were fitted, on window sills, uPVC windows and patio & French doors.
Somewhere as small as Colbury, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Where
- Colbury (SO40)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Why it’s worth doing now in Colbury
The work is quick compared with the damage it prevents: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. Around Colbury, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why us?
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
- Tidy, careful work
- Experience in homes, commercial sites and hotels
Take a look at our cost guide and what customers say.
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- Any mould that needs treating
- The number of rooms or windows
- When we can work, for business premises
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
What to tell us for a quote
When you call or email, these details help:
- The problem you’ve noticed
- Pictures of the joints, sent by email
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Your questions about window mastic in Colbury
Is window mastic in a coastal place like Colbury any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Do you cover smaller places like Colbury?
Yes. Colbury is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is the new sealant paintable?
Most silicone can’t be painted. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
How many windows can you do in a day?
The work takes a few hours for a few frames, or a day or more for a whole house. Access and the amount of old mastic make the biggest difference.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Are you insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
How much does window mastic cost in Colbury?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep drainage slots and sill grooves clear
- Clean frames with a soft cloth and soapy water
- Avoid blasting the frames with a pressure washer
- Keep paint off silicone joints
A yearly look round the frames is enough. Small splits are simple to catch before they leak.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Landlord and commercial work in Colbury
We also work for property managers and facilities teams. Several sites can be quoted together.
If you manage several properties in or around Colbury, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Also near Colbury
What else we do in Colbury
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of frames, longer for a whole house. Somewhere like Colbury needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
We quote each job on its own. Just phone 0345 464 0079 or send us an email with the details, and pictures are welcome.
Read more
How the job changes by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it without cracking.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.