
Mastic sealant contractors in Southwood
Mastic sealing for Southwood, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- No planned programme for sealant
- Patchy repairs in mismatched sealant
- Brittle perimeter mastic across a building
Mastic sealing in Southwood
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Southwood
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. Many prefer a planned programme to one-off visits and we quote and schedule each building in turn. We work on communal kitchens and washrooms, balcony and threshold joints and shopfronts below residential blocks, and the failures we’re asked to look at most are worn sealant at communal door frames and movement joints with sealant missing. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Southwood is the same: the right product in a properly prepared joint.
Places the size of Southwood usually have some housing association stock, small blocks and mixed-use buildings. Their window perimeters and external joints need renewing as the mastic ages.
Work we carry out in Hampshire comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or send details through our quote form and we’ll come back to it.

- Where
- Southwood (GU14, GU51)
- Region
- Hampshire
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. What matters most for a job in Southwood is a clear list of what needs doing, so send photographs of each area. A fixed quote follows.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Preparing the site
- Send asbestos survey details if the building is pre-2000
- Send any specification or drawings in advance
- Tell us what induction or permit system the site runs
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, call 01277 525 020 or email a schedule or drawings.
Related advice
Southwood: questions and answers
Is Southwood too far out for you?
Not at all. Southwood is within our area. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Will you take on work at estates like Southwood Business Park, close to Southwood?
Yes. We cover Southwood and the area around it, including industrial estates, business parks and retail parks such as Southwood Business Park. A few photographs and the unit address let us price the work.
Do you check for asbestos in old sealant?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.
Do you guarantee the mastic work?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
What do you charge?
Each job is quoted on its own details. To get one, call 01277 525 020 or email a schedule or drawings.
Will you come and look before quoting?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit before quoting.
How long will the new sealant last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
What sealant work can’t fix
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Failed window or door frames, which need a window contractor
- Glazing that needs replacing
- Asbestos-containing sealant, which we don’t remove
Not sure which it is? You can phone 01277 525 020 or email us and we will tell you honestly before you book.
Surfaces we seal
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
- External wall and movement joints
- Balcony and threshold joints
Leave it or put it right?
Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee. For buildings in places like Southwood, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.
Why choose Mastic Doctor in Southwood
- Sealing commercial buildings since 2005
- Specification-led, product-correct work
- Fully insured
- 12-month guarantee on workmanship
See our cost guide or how we’re accredited.
Looking after buildings in and around Southwood
The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. Central London is about 34 miles from Southwood. Within reach of London, blocks run by agents and associations are common around stations.
Buildings close to stations like Fleet station, 1.5 miles west of Southwood, are often flats over shops, with frame mastic to keep sound. Older community buildings, St John the Baptist among them, often have frames of mixed ages whose mastic varies. For owners of several units at places like Southwood Business Park, which lies east of Southwood, one programme can deal with frame and external mastic across the lot.
Southwood is about 1 mile west of Farnborough, in Hampshire. Our applicators travel to Southwood for work on mastic joints, handled exactly as we handle every other area. Our Hampshire coverage takes in 723 places, large and small. We also cover Reading, some 13 miles away.
Postcode districts covered here: GU14 and GU51. For a building on Fleet Road, Kennels Lane and Summit Avenue or nearby, we can quote for mastic joints. Close to Southwood, our area also takes in Cove (1 mile north), Farnborough (1 mile east), North Camp (2 miles east), Mytchett (3 miles east) and Aldershot (3 miles south-east). Nearby towns on our patch include Basingstoke (13 miles west), Alton (12 miles south-west), Yateley (4 miles north-west), Bordon (13 miles south), Hook (7 miles west) and Popley (12 miles west).
Landmarks near Southwood
Around Southwood, our work takes us to commercial buildings near National Aerospace Library, Ancells Farm Park and Cove School. The closest station to Southwood is Fleet station, about 1.5 miles west. Well-known places in the area include Hart Shopping Centre (2.1 miles west) and Royal Army Dental Corps Historical Museum (2.6 miles south-east). Not far away are Aunt's Pool and Ball Hill.
Cost factors for mastic joints
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Quantities, in metres or numbers
- The product specified
- How accessible the joints are
- Location, for remote and island sites
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
What we need to price the job
However big the job, the same details help:
- The product your specification calls for
- Drawings or a marked-up plan, if available
- Your programme or deadline
- What the building is and how it’s used
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Towns and villages near Southwood
More services for Southwood
General trades versus a specialist
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Looking after the joints
Regular inspection catches problems early. In particular:
- Protect low-level joints in entrances
- Group repairs into a planned programme
- Include mastic in your cyclical inspections
- Share the asbestos register when you send details
Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.
Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order and work down the list.