Hampshire · England

Bar End Window Mastic

Our applicators work in Bar End on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Sealant in the wrong colour for the frame
  • Water coming in at the bottom corners of a door
  • Old mastic that has gone black or come away

Book window mastic in Bar End

What affects the quote in Bar End

Your quote is based on your job. We look at:

  • The product the joint needs
  • When we can work, for business premises
  • The number and length of the joints
  • The old material and how stubborn it is

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.

Asking for a quote

When you contact us, it’s useful to know:

  • Pictures of the joints, sent by email
  • Where the property is
  • If someone has resealed it before
  • What the problem is, such as mould, gaps, leaks or cracking

Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or send us an email with the details, and pictures are welcome.

Window mastic in Bar End, done properly

The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on uPVC windows, window sills and patio & French doors, and common reasons people get in touch are cold air getting in at the frame edge and draughty joints inside around the window.

Somewhere as small as Bar End, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

Our work is backed for twelve months, in Bar End and everywhere else we cover.

Where
Bar End (SO23, SO21)
Wider area
Hampshire
Guarantee
One year on every job
Price
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What we’re called out for in Bar End

Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.

The most common problems we see are:

  • Rushed sealant from a window installation
  • Cold air getting in at the frame edge
  • A bead that does not match the frame
  • Draughty joints inside around the window

In the older streets around All Saints, the joint between an old wall and a newer frame is usually the first place rain gets in.

What your quote should include

  • Is the old sealant removed completely?
  • How the joint is cleaned and prepared
  • Whether they’re fully insured
  • What the cure time is

10 questions to ask before you book

How to look after the new joints

Looking after new joints is easy:

  • Walk round the house once a year and look at the joints
  • Don’t paint over the silicone
  • Avoid harsh chemicals near the mastic
  • Keep paint and stain on wooden frames in good order

Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.

Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.

Windows and doors in Bar End

Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For site and facilities teams at buildings such as All Saints Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Winchester station, renewing tired window mastic between tenants heads off draught and damp complaints.

Bar End is about 1 mile south-east of Winchester, in Hampshire. Every kind of property in Bar End can book us for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Bar End is one of 683 places in Hampshire we cover for window mastic. Our Southampton page covers work nearby, about 10 miles away.

Jobs for window mastic in SO23 and SO21 is quoted and booked the same way as anywhere else. Streets in the area include Vale Road, Domum Road and Portal Road. You’ll find Bar End on the A31, which makes it straightforward to reach. Neighbouring places we cover for window mastic include Highcliffe (1 mile north-east), Winchester (1 mile north-west), St Cross (1 mile west), Hyde (1 mile north) and Stanmore (1 mile west). We also work in nearby towns such as Eastleigh (6 miles south), Fareham (15 miles south), Andover (13 miles north-west), Totton (13 miles south-west), Chandler's Ford (6 miles south-west) and Hedge End (10 miles south).

Landmarks near Bar End

Around Bar End, our work takes us to homes and buildings near Leigh House Hospital, St. Cross Park and Heart in Hand pub. For rail, the closest station is Winchester station, about 1.2 miles north-west of the centre. Other landmarks nearby include St John's Rooms And Chapel (0.6 miles north) and Wolvesey Castle (within half a mile north-west). Open spaces near Bar End include Twyford Down and Winnall Moors.

Map of Bar End © OpenStreetMap contributors

Landlord and commercial work in Bar End

We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

How the visit works

There isn’t much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a handful of frames, longer for a whole house. For a village or hamlet like Bar End, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, we go round the frames with you and agree the list.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Where the gap is deep, backing rod goes in first.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. We tool each bead neatly and check every joint is closed.

Getting ready for the visit

  • Let us know if you’ve seen damp or leaks
  • Tell us about any previous sealing or DIY attempts
  • Let us know about parking restrictions

Getting a quote

Want a quote for window mastic? Please ring 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.

Get a quick quote

Read more

DIY sealant or a professional job?

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

FAQs for Bar End

Do you cover smaller places like Bar End?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Do you cover Bar End for window mastic?

Yes. We work across London and the South East, and Bar End is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.

How much does window mastic cost in Bar End?

We do not 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. You will get a clear quote before work begins.

Is the new sealant paintable?

That depends on the product. Some hybrid sealants can be painted; silicone can’t. Tell us if you are decorating and we will choose accordingly.

Will new mastic stop draughts?

Yes, where the draught is at the frame edge. We check where the draught is before work begins.

Should I try DIY first?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

What do you put in the joint?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.

What should I tell you?

Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.

Surface by surface

Patio & French doors

Heavy door frames can move more than windows. A flexible sealant copes with that without cracking.

uPVC windows

uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job