Home improvement cost planning

Plan the project before the quote arrives.

Explore practical US and UK cost ranges for renovation, repair, replacement, and outdoor projects—with assumptions and limitations kept visible.

Choose a market for the correct currency, units, assumptions, and source data.

Explore calculators Explore house designs

Published interactive concept

Modern American Family House

Explore exterior finishes and viewing angles in 3D.

Planning principle

Range first. Assumptions visible.

Two marketsSeparate US and UK pricing context

Planning rangesLow, typical, and high scenarios

Transparent scopeSources, assumptions, and exclusions

Start with a popular project

Featured planning tools

Useful starting points for projects where area, specification, and site conditions materially affect cost.

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Roof Replacement Cost Calculator

Understand likely costs before replacing your roof.

Material · Area · Access

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Kitchen Remodel Cost Calculator

Plan kitchen renovation costs by size, level, and selected upgrades.

Scope · Finishes · Upgrades

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Heat Pump Cost Calculator

Estimate the cost of a more efficient heating system.

System · Equipment · Installation

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Driveway Cost Calculator

Plan a practical budget for a new driveway.

Materials · Size · Site work

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Browse by project

Find the calculator that fits your scope

Every tool uses the actual HomeCostNest catalogue and opens with market-specific pricing, units, assumptions, and sources.

Roofing

Roof coverings, drainage, openings, and exterior envelope work.

Roof Replacement Cost Calculator

Understand likely costs before replacing your roof.

Material · Area · Access

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Siding Replacement Cost Calculator

Estimate siding or house cladding replacement by area and material.

Area · Scope · Project options

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Gutter Replacement Cost Calculator

Estimate gutter or guttering replacement costs by length, material, and property access.

Area · Scope · Project options

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Skylight Installation Cost Calculator

Estimate skylight or roof-window installation costs by quantity, unit type, opening work, and roof conditions.

Area · Scope · Project options

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Chimney Repair Cost Calculator

Estimate existing-chimney repair costs by repair type, condition, access, and affected scope.

Area · Scope · Project options

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Kitchen & Bathroom

Core room renovations, cabinetry, worktops, and fitted finishes.

Bathroom Remodel Cost Calculator

Build a clearer budget for your bathroom project.

Scope · Finishes · Upgrades

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Kitchen Remodel Cost Calculator

Plan kitchen renovation costs by size, level, and selected upgrades.

Scope · Finishes · Upgrades

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Countertop Replacement Cost Calculator

Estimate countertop or worktop replacement costs by area, material, edge, layout, and selected work.

Area · Scope · Project options

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Kitchen Cabinet Replacement Cost Calculator

Estimate kitchen cabinet or unit replacement costs by installed length, specification, finish, and layout.

Scope · Finishes · Upgrades

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Flooring & Painting

Interior and exterior finish projects measured by area and scope.

Flooring Installation Cost Calculator

Estimate flooring installation costs by area, material, and preparation.

Area · Scope · Project options

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Interior Painting Cost Calculator

Estimate interior painting by wall area and project scope.

Area · Scope · Project options

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Exterior Painting Cost Calculator

Estimate exterior painting by wall area, access, and preparation.

Area · Scope · Project options

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Tile Installation Cost Calculator

Estimate installed tile costs by area, material, application, pattern, and preparation.

Area · Scope · Project options

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HVAC & Energy

Heating, cooling, hot water, insulation, and home-energy systems.

Heat Pump Cost Calculator

Estimate the cost of a more efficient heating system.

System · Equipment · Installation

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HVAC Replacement Cost Calculator

Get a starting point for HVAC replacement planning.

System · Equipment · Installation

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Solar Panel Cost Calculator

Estimate solar PV installation cost before incentives.

Area · Scope · Project options

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Insulation Cost Calculator

Estimate insulation installation costs by area, type, and access.

Area · Scope · Project options

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Water Heater Replacement Cost Calculator

Estimate tank water-heater or hot-water-cylinder replacement costs.

System · Equipment · Installation

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Tankless Water Heater Cost Calculator

Estimate tankless, instantaneous, or on-demand hot-water system costs.

System · Equipment · Installation

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Furnace Replacement Cost Calculator

Estimate US furnace or UK boiler replacement costs by system size and type.

System · Equipment · Installation

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Central AC Replacement Cost Calculator

Estimate cooling-focused central air-conditioning costs by system size and installation scope.

System · Equipment · Installation

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Mini Split Installation Cost Calculator

Estimate ductless split-system installation costs by zones, equipment, and complexity.

Area · Scope · Project options

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Boiler Replacement Cost Calculator

Estimate US hydronic boiler replacement or UK boiler-system upgrade costs.

System · Equipment · Installation

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Fireplace Installation Cost Calculator

Estimate new fireplace installation costs by quantity, appliance type, venting, finish, and connections.

Area · Scope · Project options

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Outdoor & Landscaping

Driveways, decks, boundaries, gardens, patios, pools, and garages.

Driveway Cost Calculator

Plan a practical budget for a new driveway.

Materials · Size · Site work

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Deck Cost Calculator

Estimate deck or decking costs by area, material, and complexity.

Area · Scope · Project options

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Fence Cost Calculator

Estimate fence installation costs by length, material, and site conditions.

Area · Scope · Project options

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Patio Cost Calculator

Estimate patio installation costs by area, material, and site conditions.

Area · Scope · Project options

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Garage Build Cost Calculator

Estimate new garage construction costs by area, structure, and specification.

Area · Structure · Specification

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Garage Door Replacement Cost Calculator

Estimate installed garage-door replacement costs by quantity, type, size, operation, and fitting work.

Area · Structure · Specification

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Landscaping Cost Calculator

Estimate general landscaping or garden-landscaping costs by area, project level, preparation, and planting.

Area · Scope · Project options

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Swimming Pool Installation Cost Calculator

Estimate residential swimming-pool installation costs by pool type, size, site conditions, and equipment.

Area · Scope · Project options

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Structural & Utilities

Conversions, additions, structure, utilities, drainage, and whole-home work.

Window Replacement Cost Calculator

Compare the cost of replacing your windows.

Style · Frame · Glazing

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Garage Conversion Cost Calculator

Explore the budget for turning a garage into living space.

Area · Structure · Specification

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Loft Conversion Cost Calculator

Estimate the investment for a more useful loft.

Area · Scope · Project options

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House Extension Cost Calculator

Plan your budget for a home extension with confidence.

Area · Scope · Project options

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Double Glazing Cost Calculator

Find a useful starting point for double glazing costs.

Style · Frame · Glazing

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Basement Remodel Cost Calculator

Estimate existing basement renovation costs by area and scope.

Area · Scope · Project options

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Foundation Repair Cost Calculator

Estimate existing-foundation repair costs by affected area or length and repair scope.

Area · Scope · Project options

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Concrete Slab Cost Calculator

Estimate new concrete slab installation costs by area, thickness, and preparation.

Area · Scope · Project options

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Home Addition Cost Calculator

Estimate the cost of adding a specific type and amount of living space.

Area · Scope · Project options

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Electrical Rewiring Cost Calculator

Estimate substantial whole-home rewiring costs by property size, scope, and access.

Area · Scope · Project options

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Plumbing Replacement Cost Calculator

Estimate whole-home domestic water-supply repiping costs by property size and pipework.

Area · Scope · Project options

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Door Replacement Cost Calculator

Estimate installed door replacement costs by quantity, door type, and fitting work.

Area · Scope · Project options

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Septic System Cost Calculator

Estimate septic-system or private-drainage costs by household size, system scope, ground, and excavation.

Area · Scope · Project options

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Sewer Line Replacement Cost Calculator

Estimate buried sewer or drain-line replacement costs by length, method, depth, and site conditions.

Area · Scope · Project options

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Drainage System Cost Calculator

Estimate yard or garden drainage costs by system type, scale, ground, and site conditions.

Area · Scope · Project options

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Retaining Wall Cost Calculator

Estimate retaining-wall installation costs by wall area, material, structural demand, and site conditions.

Area · Scope · Project options

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Demolition Cost Calculator

Estimate residential demolition costs by area, scope, construction, access, and disposal.

Area · Scope · Project options

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Whole House Renovation Cost Calculator

Estimate renovation costs for an existing home by area, renovation level, condition, and specification.

Area · Scope · Project options

Plan this project

US · HCN-US-001

Interactive house design

Explore a home concept in three dimensions.

Rotate the published model, move between preset views, and preview supported exterior component finishes. It is a planning visualization—not a construction-ready drawing set.

Bedrooms: 4
Bathrooms: 2.5
Floors: 2
Garage: 2-car

Open interactive design

Plan with context

Helpful cost guides

Browse all guides

Roofing · Both

How Much Does a New Roof Cost? Roof Replacement Cost Guide

Understand the main inputs behind a roof replacement planning estimate.

Use Roof Replacement Cost

Renovation · Both

Kitchen Remodel Cost Guide: Budget, Labor, Materials and Project Scope

A broad US and UK kitchen budgeting guide that separates project drivers from a final contractor quote.

Use Kitchen Remodel Cost

Heating & Cooling · Both

Heat Pump Installation Cost Guide: What Affects the Price?

Understand the complete HomeCostNest heat pump cost-planning model.

Use Heat Pump Cost

A transparent planning method

Useful estimates explain what sits behind the number.

HomeCostNest keeps market profiles, planning assumptions, sources, and limitations near each calculator so you can understand the estimate before using it in a project conversation.

Read the methodology Editorial standards

Choose the right market

US and UK profiles use their own currencies, measurements, terminology, and pricing context.

Define project scope

Inputs reflect supported project factors; planning-only fields are labelled clearly.

Read the range

Low, typical, and high are planning scenarios—not promises of a contractor quote.