Hampshire · England

External & façade joints in Lee, Hampshire

Specialist external mastic for Lee: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Sealant that has lost its bond to the brick or render
  • Old sealant gone brittle and cracked
  • Movement joints with cracked, split or missing sealant

Need external mastic in Lee?

Lee buildings and the weather

Lee is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you let a flat or house near Romsey station, split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as Oasis Academy Lord's Hill, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Church of St Boniface include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.

Lee is about 2 miles south of Romsey, in Hampshire. We carry out external mastic for homeowners, landlords and businesses in Lee. Across Hampshire, we cover 683 places, Lee among them.

Our applicators cover all of SO51 for external mastic and the streets around it. Whether your property is on Lee Lane and Lee Church Lane or a nearby road, we can help. Other places close to Lee include Ashfield (1 mile east), Toothill (1 mile east), Upton (1 mile south-east), Nursling (1 mile south-east) and Rownhams (2 miles south-east). We also work in nearby towns such as Winchester (10 miles north-east), Eastleigh (6 miles east), Fareham (15 miles south-east), Totton (3 miles south), Chandler's Ford (5 miles north-east) and Hedge End (9 miles east).

Local landmarks in Lee

The closest station to Lee is Romsey station, about 2.4 miles north of the centre. Well-known places in the area include King Johns House (2.3 miles north) and Romsey Community Hospital (2.3 miles north). Not far away are Testwood Lakes.

Map of Lee © OpenStreetMap contributors

External mastic in Lee, done properly

Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. If you have cracked joints where brick meets render or frames and panel joints letting water in, we can put it right.

External sealant needs dry, clean surfaces, so work around Lee is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

Applicator reaching up to seal an external door frame on a sunny day
Place
Lee (SO51)
Wider area
Hampshire
Guarantee
12 months on all our work
Quotes
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026

FAQs for Lee

I let a flat near Romsey station. Can you help?

Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.

Does living near the coast affect external mastic in Lee?

Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.

Can you quote for more than one area?

Yes, we can. Several rooms, windows or areas can go on one quote.

Do you remove the old sealant?

Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.

How long should I leave it?

That depends on the sealant used, so please follow the time we give you when we finish.

What is a movement joint?

Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.

How much does external mastic cost in Lee?

Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.

Can you seal joints between render and window frames?

Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.

How the job changes by surface

Concrete and blockwork

Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.

Joints between dissimilar materials

Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant so neither cracks the other.

When something else is needed

A few problems are outside what sealant work can do:

  • Adding movement joints to masonry that has none
  • Structural movement, which needs a surveyor or engineer
  • Failed render or damaged cladding panels

Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.

Where we work in Lee

  • Concrete & block
  • Joints between brick and frames
  • Copings & trims
  • Façade panels
  • Render & cladding joints
  • Brickwork movement joints

Looking after it afterwards

After the cure time, these simple habits help:

  • Fix overflowing gutters above sealed joints
  • Have failed joints looked at early
  • Leave the joints unpainted unless we have said otherwise
  • Point out the joints to other trades

Don’t let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.

Small splits are the time to act. At that stage it’s a simple cut out and reseal.

What happens if it’s left?

It often makes sense to reseal all the failing joints on an elevation together. They’ve weathered the same way and it means sorting access once. Around Lee, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.

Why us?

  • White, clear, grey or coloured to suit, where the product allows
  • An ARBOMaster approved applicator
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Colour agreed with you before any work starts

Read how sealant jobs are priced or customer reviews.

How we quote for external mastic

We quote each job individually. These are the things that affect it:

  • Mould in or behind the old joints
  • Access and height
  • When we can work, for business premises
  • Which sealant suits the joint

What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.

Asking for a quote

Before you ask for a quote, have a think about:

  • What the problem is, such as mould, gaps, leaks or cracking
  • How we’d reach the joints
  • Whether it’s a home or a business
  • How many joints, rooms or windows are involved

Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.

Landlord and commercial work in Lee

If you manage several properties in or around Lee, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

How the visit works

You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access in most cases. Somewhere like Lee needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. First, the joints are inspected and the access agreed.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. Joint faces are cleaned back and primed if the sealant needs it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. We apply the sealant, tool it and check the whole run.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • Plan for the work area to be out of bounds to pets and children
  • For business premises, tell us about site rules or sign-in

Getting a quote

We don’t publish a price list. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.

Get a quick quote

Read more

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job