Southwood construction mastic
Mastic packages for new-build and refurbishment projects across Southwood, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Old sealant on a refurbishment that needs stripping before new work
- Window and door perimeters that won’t pass inspection
- Bath and shower joints scraped during the final clean
Construction mastic for Southwood sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Your questions answered
Would you work within a site like Fleet Community Hospital?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
Is Southwood Business Park, near Southwood, within your area?
Yes. We cover Southwood and the area around it, including industrial estates, business parks and retail parks such as Southwood Business Park. Photos and a short description are enough for a first look.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs typically get a visit.
What do you charge?
Every job gets its own fixed quote. For yours, give us a call on 01277 525 020 or email drawings and photos with a description of the work.
What site paperwork can you supply?
Requirements differ from site to site, so tell us what you need and we’ll confirm it when we quote.
Do you do internal caulk as well as external mastic?
It depends on the specification, but frames, sanitary, kitchens, caulk where specified and snagging are typical.
What’s the quickest route to a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.
Construction mastic in Southwood
Mastic follows everyone else, which means it absorbs every delay upstream. The sequence is set with the site team and updated as plots or floors are handed over and we don’t seal before other trades have finished in an area. That keeps the work right first time and saves rework. We work on brick and block movement joints, sanitary and kitchen joints and internal decorators’ caulk, and what we are called in for most is different trades sealing to different standards and failed sealant in an existing building being refurbished. One point of contact handles commercial sealant work in Southwood from the first photos to the final walk-round, whether it’s one building or several.
Around places like Southwood, a lot of construction is the conversion of older buildings, which leaves joints between old walls and new frames that need a sealant able to take the movement, in a colour the planners or architect are happy with.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Location
- Southwood (GU14, GU51)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
New build and refits around Southwood
Central London is about 34 miles from Southwood. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme. Southwood is in the South East, one of the UK’s drier regions. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.
New wings at hospitals like Fleet Community Hospital, 2.2 miles west of Southwood, bring long runs of window and panel joints to seal. Projects at colleges like Farnborough College of Technology (to the east of Southwood) tend to run to term dates, so the mastic is planned tightly.
Southwood is about 1 mile west of Farnborough, in Hampshire. Across the GU14 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 723 places across Hampshire fall within our area, Southwood among them. Reading is covered too, around 13 miles from Southwood.
Postcode districts covered here: GU14 and GU51. Buildings on Fleet Road, Kennels Lane and Summit Avenue are within our area for mastic packages. Just outside Southwood, we also work 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).
Near you in Southwood
In Southwood, that means premises near National Aerospace Library, Ancells Farm Park and Cove School, among other places. The nearest railway station is Fleet station, roughly 1.5 miles west of the centre. 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.
What sealant work can’t fix
We check first that sealant really is the fix. It won’t put right:
- Frames fitted out of tolerance
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Damage to finishes by other trades after we have sealed
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
Surfaces we seal
- Window and door perimeters
- Brick and block movement joints
- Sanitary and kitchen joints
- Cladding and panel joints
- Floor and skirting junctions
- Internal decorators’ caulk
Keeping the joints sound
Cleaning and maintenance staff play a part too. Pass these on to them:
- Keep finished joints away from paint, plaster and scrapers
- Keep product details for future maintenance
- Ask for joint and product checks before the package is urgent
- Don’t schedule sealing before decorators and flooring are done
Tell the builders’ clean team which areas have new sealant. Scrapers used on frames and worktops can nick or lift a new bead, so stick to soft cloths and gentle cleaners near sealant.
Sanitary joints that fail early become defects soon after occupation. Leaks behind showers and basins damage finishes and floors. Proper preparation, with the right silicone first time, keeps it off the defects list.
Our process
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. For a site in Southwood, we plan so the whole job is done in one go where possible. Clear photos and measurements help us bring the right products.
- We walk the site or review drawings to understand the package.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised straight away.
- Final snagging is completed and the 12-month guarantee applies.
What we need from you
- Flag any permit to work we’ll need
- Tell us which areas need to stay in use
- Warn occupants and staff about the work
Ask for a quote
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call 01277 525 020 or email the details over to discuss it first.
Advice
Also near Southwood
Other services in Southwood
Common problems we fix in Southwood
On construction sites, joints normally fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, and the joint has to be redone.
Look out for the following:
- Frame gaps too wide for sealant alone
- Window and door perimeters that won’t pass inspection
- External joints sealed in damp or cold conditions that are now failing
- Sealant knocked or painted over by other trades
For contractors at a school such as Southwood Infant School, sealing has to be finished before term starts.
What to look for in a quote
- Can the work be phased to keep areas open?
- How they handle RAMS and site documents
- Do they follow the manufacturer’s priming guidance?
- How joint depth will be controlled
Owners, agents and contractors
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Southwood can sit alongside others in a wider programme.
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Cost factors for mastic packages
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- The total length or number of joints
- Specialist products, such as fire-rated or hygienic sealants
- Location, for remote and island sites
- Access and working height
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
What to include in your enquiry
Good information means a firmer quote. When you get in touch, include:
- The product your specification calls for
- Approximate linear metres or a joint schedule
- Whether an asbestos survey exists
- The site address and postcode
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, speak to us on 01277 525 020 or email the details over.