Southampton · England
Window & door mastic in Bitterne Manor, Southampton
Mastic around window and door frames, sills and patio doors for Bitterne Manor, backed by a 12-month guarantee. Ask us for a quote.
- Gaps between the frame and the inside reveal
- Rushed sealant from a window installation
- Draughts coming in around windows and doors
Window mastic for homes and businesses in Bitterne Manor
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on uPVC windows, aluminium frames and window sills, and the jobs we see most are untidy mastic left by window fitters and draughty joints inside around the window.
Around Bitterne Manor, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
Every job is covered by our 12-month guarantee.
- Location
- Bitterne Manor (SO18, SO17, SO14)
- Wider area
- Southampton
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it.
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Wash the frames with mild soapy water
- Don’t use solvent cleaners on the joint
- Ventilate rooms so frames don’t stay wet inside
- Make sure the drainage slots aren’t blocked
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What we cannot put right
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- A door that needs adjusting, rehanging or new seals
- A sash or casement that won’t close properly
- Rotten timber, which needs a joiner first
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- Window sills
- Composite doors
- Timber windows & doors
- uPVC windows
Also near Bitterne Manor
What else we do in Bitterne Manor
Bitterne Manor homes and the weather
Bitterne Manor is within about 2 miles of 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 window and door frames, 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Bitterne Manor Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Bitterne station? Then renewing tired window mastic between tenants heads off draught and damp complaints. If you live in an older home near Church of St Denys, the joint between an old wall and a newer frame is generally the first place rain gets in.
Bitterne Manor is about 1 mile east of Southampton, in Southampton. Bitterne Manor gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 40 towns and villages across Southampton, from the larger towns to small villages.
Every address in SO18, SO17 and SO14 is covered for window mastic. If you need window mastic at a property on Ivy Road, North Road and South Road or anywhere close by, our applicators can take on the job. If you are just outside Bitterne Manor, we cover St Denys (1 mile north-west), Southampton (1 mile west), Northam (1 mile south), Bitterne Park (1 mile north-east) and Portswood (1 mile north-west). Further out, we also cover Regents Park (3 miles west), Maybush (3 miles west), Coxford (3 miles north-west), Lordswood (3 miles north-west), Eling (5 miles west) and Rownhams (4 miles north-west).
Near you in Bitterne Manor
We work in homes and buildings around Bitterne Park School, St Mary's Independent School and Rockstone Place Park, among other places. There’s a railway station in Bitterne Manor itself: Bitterne station. Nearby you’ll also find Bitterne Local History Society Heritage And Research Centre (0.9 miles east) and Netley Castle (3 miles south). Not far away are Netley Common.
For landlords and businesses
Landlords and letting agents in Bitterne Manor can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What affects the quote in Bitterne Manor
There’s no set price list, because no two jobs are the same. The quote depends on:
- The product the joint needs
- The size of the job
- The number of rooms or windows
- When we can work, for business premises
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
When you contact us, these details help:
- A few pictures by email, if you can
- The rough size of the job
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, call 0345 464 0079 or drop us an email.
Common questions in Bitterne Manor
I let a flat near Bitterne station. Can you help?
Yes. We work for letting agents and landlords as well as householders. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Do you cover smaller places like Bitterne Manor?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
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.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
How the visit works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a morning for a couple of windows and a door. Parking around Bitterne Manor is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- 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.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- Clear items away from the joints we’re working on
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
Read more
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.