Mastic sealant contractors in Freemantle
We carry out mastic sealing for building owners, managing agents and housing associations in Freemantle and the surrounding area. Send details for a fixed quote.
- Movement joints with sealant missing
- Communal area joints that look neglected
- Brittle perimeter mastic across a building
Need mastic sealing in Freemantle?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Freemantle
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Resealed mastic joints in Freemantle carry our 12-month guarantee. The enquiries we see most involve worn sealant at communal door frames and leaks at window and door perimeters, across window and door perimeters on blocks, communal kitchens and washrooms and shopfronts below residential blocks. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Freemantle, preparation and product choice get the time they need.
Owners with buildings around smaller places like Freemantle often group mastic work so one visit covers several properties. One quote can cover a whole list of addresses.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Where
- Freemantle (SO15, SO16, SO17)
- Wider area
- Southampton
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Our process
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. Work in places the size of Freemantle is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Point out any areas we must not close
- Warn occupants and staff about the work
- Share your working hours and any access restrictions
Getting a fixed quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to speak to us on 01277 525 020 or email us.
Advice
Owners, agents and contractors
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We are fully insured, and our insurance certificate can go with the quote.
Do you need mastic sealing in Freemantle?
Topping up old mastic is a common shortcut. New silicone has nothing to grip on old silicone and the repair soon fails.
Typical triggers for a call:
- No planned programme for sealant
- The same joint failures repeated across a portfolio
- Old repairs sealed over failed mastic
- Occupiers reporting cold air round windows
If you’re responsible for a building such as Christ Church, frame and door mastic needs the same attention as any other property.
Comparing quotes
- How the joint faces will be prepared and primed
- The named product and why it was chosen
- How they handle RAMS and site documents
- Will CSCS-carded applicators be on site?
Freemantle: questions and answers
Will you take on work at estates like Liners Industrial Estate, close to Freemantle?
Yes. Our area takes in Freemantle and its surroundings, with estates and business parks such as Liners Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.
Is a smaller place like Freemantle outside your area?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the quote.
Do you guarantee the mastic work?
There is a 12-month guarantee on our workmanship and we hold public liability insurance.
Who decides which product is used?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How much does the work cost?
It depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Can you plan resealing across several buildings?
Yes, planned programmes suit estates and portfolios. You get a fixed quote per building or for the whole job.
Mastic sealing around Freemantle: what changes locally
Freemantle is within about 1 mile of the coast. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, so it’s worth inspecting those sides more often. The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.
For agents with blocks near Millbrook (Hants) station, under half a mile west of Freemantle, a block-wide mastic programme deals with frames, balconies and entrances in one go. Student accommodation around universities such as Southampton Solent University (to the east of Freemantle) is typically managed block by block, which suits a planned mastic programme.
Freemantle is about 1 mile west of Southampton, in Southampton. We send applicators to Freemantle for mastic joints, handled exactly as we handle every other area. Freemantle is one of 30 places in Southampton on our list for mastic joints.
We take on mastic joints across the SO15, SO16 and SO17 postcode area, whatever the building. Among the streets we cover are May Road, Park Road and Pitt Road. Access to Freemantle is via the A33. Just outside Freemantle, we also work in Shirley (1 mile north), Regents Park (1 mile north-west), Millbrook (1 mile west), Maybush (2 miles north-west) and Coxford (2 miles north-west). Bigger towns within reach include Midanbury (3 miles east), Thornhill (4 miles east), Harefield (4 miles east), Itchen (3 miles east), Sholing (3 miles east) and Woolston (3 miles south-east).
Near you in Freemantle
In Freemantle, that means premises near St Anne's Catholic School, Blechynden Terrace Park and The Brass Monkey pub, among other places. Freemantle has its own railway station: Millbrook (Hants) station. Other landmarks nearby include Western Community Hospital (1.3 miles north-west) and Foresters Museum & Archive (less than half a mile east). Open spaces near Freemantle include Testwood Lakes.
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Encourage occupiers to report problems at frames
- Prioritise elevations facing the weather
- Log resealing dates block by block
- Reduce knocks to communal area joints
Encourage occupiers to report water or draughts at frames. A quick report keeps a small repair small.
Failed mastic often goes unnoticed until heavy rain finds it. Acting at the first signs keeps it a straightforward reseal and saves internal repairs.
What the job involves on each surface
Tenement and older buildings
Older buildings, including Scotland’s sandstone tenements, have their own joint details. The material either side of the joint shapes the product choice.
Window and door perimeters on blocks
Blocks have a mix of frame materials, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
Places near Freemantle
Also in Freemantle
Cost factors for mastic joints
A fixed quote reflects the actual work. It allows for:
- Quantities, in metres or numbers
- How much existing material needs removing
- Which sealant the job calls for
- Distance, for remote addresses
We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.
What to include in your enquiry
The more we know, the firmer the quote. When you get in touch, include:
- Approximate linear metres or a joint schedule
- Anything awkward about access or site hours
- Specification clauses that apply
- What the building is and how it’s used
Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or email us.