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

Facade Sealing in Rowlands Castle

We carry out facade joint and window perimeter sealing on commercial buildings in Rowlands Castle. Send details for a fixed quote.

  • Air leaks through failed facade joints
  • Water coming in around window frames
  • New sealant peeling off old mastic
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Need facade sealing in Rowlands Castle?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Facade sealing in Rowlands Castle, done properly

Access is part of every facade job, and we plan it with you before quoting. Let us know what access exists or is planned, and any site rules we need to work around, so the price covers the real job. If you have perimeter joints where frames meet the structure and old perimeter mastic that has dried out, we can help. A specialist sealant contractor works differently from a general builder: in Rowlands Castle, that means joint design, primers and backing rod as standard.

Around places like Rowlands Castle, 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.

What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Rowlands Castle (PO9)
Wider area
Hampshire
Cover
A 12-month guarantee
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Leave it or put it right?

Resealing a few window perimeters is a small job; repairing water-damaged interiors and fixings is not. Water through a failed joint rarely stays where it starts, often turning up far from the joint. In a smaller place such as Rowlands Castle, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

Pricing facade joints depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.

Why us?

  • Fully insured, including public liability cover
  • Coloured sealants to suit the setting, where available
  • Failed material removed, not covered up
  • RAL and finish matching where the product range allows

See what affects the cost or how we’re accredited.

Common questions from Rowlands Castle clients

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

Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.

Is Rowlands Castle too small for you to travel to?

No. Small places get the same service as large ones. London and every South East county are within our area. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.

Are you insured?

Yes. We’re fully insured, including public liability cover.

Do you provide access for facade work?

That comes down to the access arranged for the job. Share what access exists or is planned when you send details, and we’ll agree the approach together.

Can you work while the building is occupied?

Yes, with some planning. Tell us your site hours and access windows and we will plan around them.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.

Is colour matching possible?

That depends on the product specified. Some ranges offer many colours, others very few, so we will confirm the colours available for the specified product with the quote.

Our process

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes anything from a single day to several weeks, depending on joint lengths, access and the weather, and we clear our waste as we work. Several jobs near Rowlands Castle can be grouped on one trip. Tell us your site hours and we will plan around them.

  1. Access, site rules and timing are settled with the client up front.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. We remove the old bead and check the edges are sound.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

Getting the site ready

  • Tell staff and tenants when we’ll be in
  • Make sure the joints can be reached
  • Explain the parking and delivery arrangements

Get a fixed quote

To get a fixed quote, give us a call on 01277 525 020 or email drawings and photos with the site address and an outline of the work. You can also send details through our quote form.

Get a quick quote

Read more

New build and refits around Rowlands Castle

Rowlands Castle is within about 3 miles of the coast. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so we check the specified product suits the exposure before the first bead. Rowlands Castle sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so external mastic is timed for workable conditions and agreed with the site manager.

With historic properties like Warblington Castle (3 miles south of Rowlands Castle) in the area, refurbishment work often meets old masonry that needs compatible sealants. Extensions at sites like Spire Hospital Portsmouth (to the south of Rowlands Castle) typically sit beside working departments, and the mastic follows strict access rules. When units on a site such as Dunsbury Hill Business Park (2.1 miles south-west of Rowlands Castle) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Rowlands Castle is about 2 miles north-east of Havant, in Hampshire. Commercial clients in Rowlands Castle use us for work on facade joints. We work across 723 places in Hampshire, large and small. Sites around Portsmouth have their own page, roughly 7 miles from Rowlands Castle.

Anyone looking for facade sealing in PO9 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. If your site is on Stansted Close, College Close and Redhill Road or close by, we can quote for facade joints. Sites close to Rowlands Castle are covered too, including Durrants (1 mile south), Leigh Park (2 miles south-west), Havant (2 miles south-west), Denvilles (2 miles south) and Westbourne (2 miles south-east). Nearby towns on our patch include Gosport (10 miles south-west), Fareham (10 miles west), Hedge End (15 miles west), Waterlooville (3 miles west), Petersfield (8 miles north) and Purbrook (3 miles south-west).

Near you in Rowlands Castle

In Rowlands Castle, that means premises near Robin Hood Inn. Rowlands Castle has its own railway station: Rowlands Castle station. Other landmarks nearby include Havant War Memorial Hospital (2.6 miles south-west) and Havant Museum (2.7 miles south). Open spaces near Rowlands Castle include Compton Down and Brook Meadow (Emsworth).

Map of Rowlands Castle © OpenStreetMap contributors

Keeping the joints sound

Keep the joints in good shape with a few simple steps:

  • Brief window cleaners about newly sealed joints
  • Combine resealing with other works that need access
  • Keep sills, gutters and drainage paths clear
  • Avoid patch repairs on failed facade joints

Blocked sills and gutters push water at the joints. Sealant copes better when water runs off the facade as designed instead of soaking the joints.

Get the joint design right when resealing: correct depth, proper backing and a sealant that can take the movement. A well-designed joint lasts longer than a like-for-like copy of a failed one.

What we can’t put right

Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:

  • Installing or repairing glazing systems
  • Specialist high-level access methods
  • Render or concrete edges that have broken away

If in doubt, speak to us on 01277 525 020 or send photos by email and we’ll say what we think.

What we seal

  • Shopfront frames
  • Perimeter joints where frames meet the structure
  • Coping and flashing joints
  • Window and door perimeters
  • Cladding panel joints
  • Stone and brick facade joints

What the job involves on each surface

Coping and flashing joints

Sometimes the coping or flashing itself has failed. We tell you if the fix is a roofing or metalwork job rather than a reseal.

Precast concrete panels

Concrete edges can be dusty or weak. Faces are cleaned to sound concrete, and damaged edges are reported before sealing.

Cost factors for facade joints

We price every job individually. The things that drive the figure:

  • Specialist products, such as fire-rated or hygienic sealants
  • Access and working height
  • Joint width, depth and condition
  • Whether old sealant has to be cut out first

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

What to include in your enquiry

However big the job, these details speed things up:

  • Access details, including height
  • The site address and postcode
  • Rough lengths or quantities, or drawings if you have them
  • A wide shot and a close-up of the area

Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Accreditations

Trusted. Accredited. Insured.