The Mastic Doctor team standing beside their branded vans outside an office building
Southampton · England

Commercial sealant contractors in Lordswood, Southampton

Planning work on a sealant joint in Lordswood? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Weathered facade sealant that no longer flexes
  • Sanitary sealant that has gone black and patchy
  • Untidy joints in a reception, shop floor or lobby
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors across Lordswood

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Commercial sealant contractors in Lordswood, done properly

Commercial occupiers rarely want a floor out of action for sealant work. Work is scheduled around the site hours and access windows you give us; phasing keeps some washrooms, kitchens or entrances available while others are done. It’s the same approach in offices, retail units, hotels, schools and healthcare buildings. We work on external facade joints, floor and threshold joints and movement joints in walls and floors, and the failures we are asked to look at most are mouldy silicone around WCs, urinals and vanity tops and expansion joints with the sealant torn out. Most enquiries from Lordswood start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

In an occupied building in Lordswood, the job is planned so areas stay in use: we agree the order with you and hand back each area with its cure time.

For a business in Lordswood, it usually makes sense to put the sealant work into one visit: frontage, staff facilities and window perimeters on one booking. Fewer visits means less disruption to trading.

We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Lordswood (SO16, SO15)
Wider area
Southampton
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Keeping the joints sound

After handover, these steps help:

  • Make sure ventilation in wet areas is switched on and working
  • Ask cleaners to use a soft cloth and mild cleaner on sealant
  • On pre-2000 buildings, share the asbestos information before work starts
  • Report cracked or peeling sealant early

New joints need their full cure time before they take water, cleaning or traffic. Cure time varies with the product, conditions and depth of the joint, and we confirm it when each area is handed back. Keeping signs or barriers up until then protects the finish.

Each spell of wet weather pushes more water through an open joint. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

Why act early in Lordswood

Some managers wait for a fit-out before touching the mastic. That’s reasonable for internal joints that are just tired-looking, but a joint letting water in now keeps doing damage until the refurb arrives. Splitting the scope into now and later is often the sensible compromise. For buildings in places like Lordswood, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

Why us?

  • 12-month guarantee on workmanship
  • Health and safety: CHAS accredited
  • Products installed to the manufacturer’s instructions
  • Colours confirmed for the specified product

See how commercial sealant jobs are priced and how we’re accredited.

Frontages, fit-outs and joints in Lordswood

Lordswood is within about 3 miles of the coast. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. Where a frontage needs a particular colour, the product still has to suit that exposure. The 3 miles around Lordswood take in at least three named trading estates, business parks or retail parks. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies.

Trade counters and showrooms on estates such as Northbrook Industrial Estate, 0.8 miles to the south of Lordswood, need neat joints where clients see them. Shops and cafés around stations like Millbrook (Hants) station, 2.2 miles to the south of Lordswood, trade from early, so work is timed around them.

Lordswood is about 2 miles north-west of Southampton, in Southampton. Across the SO16 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Lordswood is one of 30 places in Southampton on our list for sealant joints.

If you need commercial sealant contractors in SO16 and SO15, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Peach Road, Linden Road and Woburn Road, and sites on any of them can send details for a fixed quote. We also cover Coxford (1 mile south-west), Bassett (1 mile east), Rownhams (1 mile north-west), Maybush (1 mile south-west) and Chilworth (1 mile north-east) for sealant joints. Nearby towns on our patch include Midanbury (3 miles east), Thornhill (5 miles south-east), Harefield (4 miles south-east), Itchen (4 miles south-east), Sholing (4 miles south-east) and Woolston (4 miles south-east).

Around Lordswood

Around Lordswood, our work takes us to commercial buildings near St James' Park, Upper Shirley High School and Oaklands Community School, among other places. For rail, the closest station is Millbrook (Hants) station, about 2.2 miles south of the centre. A little further out are Marlands Shopping Centre (2.8 miles south-east) and Princess Anne Hospital (0.5 miles south). The countryside around Lordswood includes Testwood Lakes.

Map of Lordswood © OpenStreetMap contributors

Signs you need commercial sealant contractors in Lordswood

No sealant joint is permanent. Its life comes down to movement, UV and weather, how it’s cleaned, how much traffic passes it and what was used in the first place. On a busy commercial site several of those pile up at once, so periodic inspection matters more than any date on a schedule.

Common reasons buildings call us in:

  • Gaps behind commercial kitchen worktops and sinks
  • Messy, uneven beads from earlier work that let the building down
  • Black mould through washroom sealant that won’t clean off
  • Wall and floor joints that have lost their seal

Sites a few miles apart, such as Northbrook Industrial Estate and Shirley Retail Park, can share one programme and one point of contact.

Questions to ask before you book

  • Are they CHAS accredited or on Constructionline?
  • Which product they’ll use, and why it suits the joint
  • Whether primer will be used where the manufacturer specifies it
  • How they’ll work around occupants

Questions to ask before you appoint anyone

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 Lordswood can sit alongside others in a wider programme across Southampton.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Our process

Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before we move to the next. If neighbouring businesses or buildings around Lordswood need work too, visits can be combined. Mention the building’s opening times and we will work within them.

  1. First, details reach us through the quote form or a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  3. Where parts of the building must stay open, the work is phased.
  4. Old sealant is cut out completely, never sealed over.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Before we start on site

  • Share your working hours and any access restrictions
  • Share the asbestos register for older buildings
  • Point out parking and an unloading spot

Ask for a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email us with what you know.

Get a quick quote

Related advice

Lordswood: questions and answers

Does the sea air around Lordswood change the choice of sealant?

It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Can you work at a site such as Northbrook Industrial Estate, by Lordswood?

Yes. Our area takes in Lordswood and its surroundings, with estates and business parks such as Northbrook Industrial Estate included. To start, just speak to us on 01277 525 020 or email drawings and photos with the unit, the joints involved and your access times.

What about asbestos in old mastic?

On older buildings, our first request is the asbestos survey. Managing asbestos is the dutyholder’s responsibility, and we don’t remove asbestos-containing materials.

Do you seal on top of existing sealant?

No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Will the building have to shut during the work?

Phased work can be planned so areas stay in use. We plan around the site hours and access windows you give us.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

Is Lordswood in your area?

Yes. Sites across Lordswood are covered.

When it isn’t the sealant

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Water from a services leak rather than a joint
  • Structural cracks or movement the joints weren’t designed for
  • Roof leaks that only look like a joint problem

If you are not sure, just ring 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.

Where we work in Lordswood

  • Window and door perimeters
  • Washrooms and tea points
  • Movement joints in walls and floors
  • Kitchen worktops and splashbacks
  • External facade joints
  • Floor and threshold joints
Accreditations

Trusted. Accredited. Insured.