Carvalho Renovations

Home Improvement Knowledge Hub

Search hundreds of practical UK renovation guides, real costs, calculators and planning information — written by people who do this work every day.

Latest Advice

Extensions

Kitchen Extension Cost: What Affects the Price

A kitchen extension combines the cost of a structural extension with a full kitchen fit-out — here's how the two combine, and what drives the total.

Carvalho Renovations Team3 min read
Extensions

Common Extension Mistakes to Avoid

The same handful of mistakes account for most extension projects that go over budget, over time, or both. Here's what they are and how to avoid them.

Carvalho Renovations Team3 min read
Extensions

How Long Does a Single-Storey Extension Take?

A realistic week-by-week view of how long a single-storey extension actually takes, from planning through to finished space.

Carvalho Renovations Team3 min read
Extensions

Extension Labour Costs Explained

On a typical extension, labour and materials run closer to an even split than on almost any other project type — here's what the trade cost actually covers.

Carvalho Renovations Team3 min read
Extensions

How Much Does a Double-Storey Extension Cost?

A double-storey extension costs more than a single-storey one overall — but less than double, since you get two floors of new space for one roof and one set of foundations.

Carvalho Renovations Team3 min read
Extensions

How Much Does a Single-Storey Extension Cost?

Single-storey extension costs vary enormously by size, spec and whether you're extending the kitchen or adding a separate room. Realistic UK ranges and what actually drives the price.

Carvalho Renovations Team4 min read
Plumbing

Signs You Need a New Boiler

Not every boiler problem means a replacement — but age, frequency of breakdowns, and efficiency together are a reasonable guide to when repair stops making sense.

Carvalho Renovations Team3 min read
Plumbing

Combi vs System vs Regular Boiler: Which Is Right for You?

The right boiler type depends on your household's hot water demand and existing pipework, not just which one is most popular. Here's how the three main types compare.

Carvalho Renovations Team3 min read
Plumbing

How Much Does It Cost to Replace a Boiler?

Boiler replacement cost depends heavily on the type you choose and what's already in place — here's a general guide to what affects the price.

Carvalho Renovations Team3 min read
Electrical

Consumer Unit (Fuse Box) Replacement: Cost and When You Need One

An old fuse box without RCD protection is one of the most common findings on an EICR — here's what a modern consumer unit does differently, and roughly what replacement costs.

Carvalho Renovations Team3 min read
Electrical

Electrical Installation Condition Report (EICR): What It Is and Why You Need One

An EICR is a formal inspection of your home's electrical system — increasingly a legal requirement for landlords, and genuinely useful for any homeowner unsure of their electrics' condition.

Carvalho Renovations Team3 min read
Electrical

How Much Does Rewiring a House Cost?

A full rewire is one of the more disruptive jobs in a renovation, and the cost depends heavily on house size, access, and how much needs opening up. Here's a general guide.

Carvalho Renovations Team4 min read