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

Durrants construction mastic

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

  • Window and door perimeters that won’t pass inspection
  • Internal caulk splitting as the building dries out
  • External joints sealed in damp or cold conditions that are now failing
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Construction mastic in Durrants

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

Building and refurbishing in Durrants

Durrants sits close to the coast, within about 3 miles. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, so we check the specified product suits the exposure before the first bead. Durrants sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager.

School extensions, at buildings such as Havant Academy, usually run to the summer holidays, mastic included. Older buildings in the area around Durrants, such as Warblington Castle (2.5 miles south of Durrants), need care when sealed: the product has to suit soft or historic materials.

Durrants is about 2 miles north-east of Havant, in Hampshire. Any commercial site in Durrants is covered, whether it’s a single job or part of a planned programme. Across Hampshire, 723 places are covered, including Durrants. For work in that direction, see our Portsmouth page (7 miles or so).

Anyone looking for construction mastic in PO9 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are Whichers Close, Whichers Gate Road and Durrants Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Rowlands Castle (1 mile north), Leigh Park (1 mile south-west), Havant (2 miles south-west), Denvilles (2 miles south) and Westbourne (2 miles south-east) for mastic packages. Further afield, our area takes in Gosport (10 miles south-west), Fareham (10 miles west), Horndean (3 miles north-west), Hedge End (15 miles west), Waterlooville (3 miles west) and Petersfield (9 miles north).

What’s near Durrants

Recent enquiries here include premises near Sharps Copse Primary and Nursery School, St Albans Church and Robin Hood Inn. For rail, the closest station is Rowlands Castle station, roughly 0.9 miles north-east. Well-known places in the area include Havant War Memorial Hospital (2 miles south-west) and Havant Museum (2.1 miles south). The countryside around Durrants includes Brook Meadow (Emsworth) and Compton Down.

Map of Durrants © OpenStreetMap contributors

Construction mastic in Durrants, done properly

We work to the specification and the programme rather than whatever product is to hand. If a product is named, that’s what goes in. Joint widths, backing, primers and tooling follow the manufacturer’s guidance so the detail on the drawing is what ends up on site. We work on cladding and panel joints, sanitary and kitchen joints and floor and skirting junctions, and the failures we’re asked to look at most are oversized or tapered gaps around new frames and existing joints on a refurb that need cutting out and resealing. One point of contact handles commercial sealant work in Durrants from the first photos to the final walk-round, for single jobs and planned programmes alike.

Sites around smaller places like Durrants can be a fair drive from suppliers, so we come with everything the package needs. Send drawings or photographs and the programme and we will quote to suit.

A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, give us a call on 01277 525 020 or send photos by email and we will come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Durrants (PO9)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

How the job changes by surface

Window and door perimeters

Frames sealed into the opening keep rain out of the reveal. They’re sealed with a low-modulus neutral-cure silicone or another product named in the specification and set the depth with backing where needed.

Kitchens and utility areas

Kitchen joints are sealed after fitting and before final clean. A kitchen-suitable sealant is used and hygienic or food-safe grades wherever food contact is possible.

What affects the price in Durrants

We price every job individually. The main factors are:

  • Specialist products, such as fire-rated or hygienic sealants
  • Quantities, in metres or numbers
  • Site requirements such as inductions and permits
  • How much existing material needs removing

Pricing mastic packages depends on quantities, condition and access, plus any specification you’re working to. Ask us for a fixed quote.

Sending details for a quote

We can often quote from photographs and a few details. Please tell us:

  • Where the site is, with the postcode
  • When you need the work done
  • Access details, including height
  • Approximate linear metres or a joint schedule

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email us.

FAQs: Durrants

Our building in Durrants is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Can you work on a hospital site such as Spire Hospital Portsmouth?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Do your applicators hold CSCS cards?

We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. Public liability insurance of five million pounds is in place too.

Can you work to our specification?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

What guarantee comes with a mastic package?

Each package is backed by a 12-month guarantee. We’re also fully insured for public liability.

Who decides which product is used?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you take on mastic snagging only?

Yes. Damaged, missed or untidy joints are stripped and done again properly to suit the programme.

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. Then we strip out anything that has failed, prepare every joint and seal it. Jobs in and around smaller places like Durrants are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. Drawings, specification and programme come to us.
  2. We take off quantities and return a fixed quote.
  3. The sequence is agreed with the site manager.
  4. Each area is sealed when it’s released.
  5. Every joint is cleaned, set to depth and sealed with the specified product.
  6. Snags are cleared and the package signed off with our 12-month guarantee.

Preparing the site

  • Point out parking and an unloading spot
  • Tell us which areas need to stay in use
  • Confirm the product named in the specification

Getting a fixed quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email us.

Get a quick quote

Advice

When to call us in Durrants

Wide, tapered or inconsistent gaps around frames are a common problem. Every product has limits on how wide a joint it can bridge and gaps beyond it need packing or adjusting by the frame installer. Better to raise it at the start than seal a joint that’s bound to fail.

Most enquiries start with one or more of the following:

  • A mastic package split between trades with no clear owner
  • Failed sealant in an existing building being refurbished
  • Mastic snags holding up handover
  • Perimeter gaps outside the sealant’s range

For a contractor working at a hospital such as Spire Hospital Portsmouth (1 mile south-east of Durrants), perimeter and facade sealing is planned around patients and deliveries.

Before you book anyone

  • Their pre-qualification and accreditations
  • Will RAMS and insurance details be available?
  • Who will actually carry out the work
  • Proof of insurance

How to choose a sealant contractor

What happens if it’s left?

Some packages split mastic across the window fitter, kitchen fitter and plumber. In practice it often means different standards, gaps in responsibility and snags nobody owns. One mastic subcontractor for the lot keeps it simple and a consistent finish. Halls, stores and units around places like Durrants may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

What a job costs comes down to the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.

Why clients in Durrants choose us

  • Products installed to the manufacturer’s instructions
  • Our applicators hold CSCS cards
  • RAL and finish matching where the product range allows
  • A Constructionline member, so easy to vet

See our cost guide and how we’re accredited.

When something else is needed

Some faults sit outside our scope, and we say so rather than covering them up:

  • Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
  • Defective windows, doors or glazing units (the supplier or installer’s job)
  • Joint design decisions that belong to the architect or engineer

Not sure which it is? You can call the office on 01277 525 020 or send photos by email and we’ll tell you honestly before you book.

Where we work in Durrants

  • Cladding and panel joints
  • Window and door perimeters
  • Internal decorators’ caulk
  • Floor and skirting junctions
  • Brick and block movement joints
  • Sanitary and kitchen joints
Accreditations

Trusted. Accredited. Insured.