Guides
Straight answers to the questions people get stuck on: what a job should cost, how much material to buy, and how to tell a fair quote from a bad one. Each guide links to the calculator that does the math.
Roofing and exterior
Are Gutter Guards Worth It? What Homeowners Actually SayAre gutter guards worth it? Pro installs run about $4,100 to $6,000 for 200 ft, and they pay off mainly for homes under heavy leaf drop or on tall roofs.
Are New Windows Worth the Money? The Payback Math Nobody Tells YouAre new windows worth it? At $800 to $1,500 per window, energy savings alone rarely pay back inside 20 years. Comfort, noise and rot are the better reasons.
How Long Does a Roof Really Last? (And Why '30-Year Shingles' Rarely Make 30)How long does a roof last? Three-tab shingles run about 15 to 20 years and architectural shingles 25 to 40, and a 30-year warranty is not a 30-year promise.
How Much Attic Insulation Do You Really Need? (R-Value & Diminishing Returns)How much attic insulation do I need? ENERGY STAR says R-30 to R-60 by climate zone, and each step past R-38 saves less heat than the one before.
How Much Does a New Roof Cost in 2026? Real Numbers From HomeownersHow much does a new roof cost? Most asphalt shingle roofs run $4.25 to $12.25 per square foot installed, or roughly $8,500 to $24,500 for 2,000 sq ft.
Metal Roof vs Shingles: Is Metal Actually Worth 3x the Price?Metal roof vs shingles: metal runs about 2 to 3 times the price, lasts 40 to 70 years against 15 to 30, and pays back only if you stay put for decades.
Roofing Scams: How to Tell If a Roofer Is Ripping You OffRoofing scams usually start with a door-knock after a storm and a deposit over 15% of the job. Here are the red flags, the checks, and a safe payment schedule.
Repair or Replace? How to Tell If You Actually Need a New RoofSigns you need a new roof: spread-out curling, granules in gutters, daylight in the attic, or repairs over 30% of a roughly $8,800 to $10,500 roof.
Vinyl vs Fiber Cement (Hardie) Siding: Which Is Actually Worth It?Vinyl vs fiber cement siding: vinyl runs $3 to $12 per sq ft and fiber cement $5 to $14, and fiber cement lasts roughly 40 to 50 years against 20 to 40.
- How to Measure Roof Pitch From the GroundHow to measure roof pitch with a level and tape from the attic or a ladder, what x/12 means, and how pitch changes your material order, plus a reference table.
Concrete and foundations
Am I Being Overcharged for Concrete? How to Read a Concrete QuoteConcrete cost per square foot runs about $4 to $10.50 for a plain slab. Here is how to turn any quote into dollars per square foot and spot a padded one.
How Much Does a Concrete Driveway Cost in 2026? Real Numbers by Size and RegionA concrete driveway costs about $6 to $16 per square foot in 2026, so a 720 sq ft two-car drive runs roughly $4,300 to $11,500 before tear-out and permits.
Rebar vs Wire Mesh vs Fiber: What Does Your Slab Actually Need?Do I need rebar in a concrete slab? Rebar suits 5 to 6 inch driveway and garage slabs, mesh suits 4 inch slabs, and a compacted base matters more than either.
Why Your French Drain Isn't Working (And How to Actually Fix It)A French drain that still floods usually has a clay cap, an outlet that goes nowhere or too little slope: aim for 1 inch of fall per 8 feet and an open exit.
Gravel vs Asphalt vs Concrete Driveway: Cost, Lifespan & Which Wins WhereGravel costs about $1 to $10 per square foot, asphalt $7 to $15 and concrete $8 to $20 in 2026. Lifespan, climate and drainage decide which one wins.
How Long Before You Can Drive on New Concrete? A Walk, Park and Drive TimelineYou can walk on new concrete after about 24 hours and park a car after 7 days, when it has reached roughly 70% of its strength. Heavy trucks wait 28 days.
The #1 Reason Concrete Fails: Base & Subgrade Prep (Not the Concrete)How much gravel under a concrete slab? Plan on at least 4 inches of compacted crushed stone, placed in 3 to 4 inch lifts, over a firm and level subgrade.
How Thick Should a Concrete Slab Be? Garage, Driveway & Shed (4" vs 6")How thick should a concrete slab be? Code minimum is 3.5 inches, 4 inches suits cars and sheds, and 5 to 6 inches suits pickups, driveways and heavier loads.
Is It Normal for New Concrete to Crack? When to Worry (and When Not To)Is it normal for new concrete to crack? Yes. Hairline cracks of 1/8 inch or less are normal shrinkage, but a wider, growing or uneven crack needs an engineer.
Retaining Wall Drainage Mistakes That Make Walls FailRetaining wall drainage needs about 12 inches of clean 3/4 to 1.5 inch stone behind the wall and a way for water to leave. Here is what to ask your mason.
Water in the Basement After Rain? Grading and Drainage Fixes to Try Before the Floor FloodsWater in the basement after rain is usually fixed outside first: slope soil 6 inches over 10 feet and run downspouts 10 feet out, for $500 to $3,000.
- How Many Bags of Concrete Are in a Cubic Yard?How many 80, 60, and 40-lb bags of concrete make a cubic yard, when bags beat ready-mix, and how to estimate your pour, with a worked example.
Electrical, HVAC and plumbing
Aluminum & Knob-and-Tube Wiring: Rewire Cost & Will Insurance Drop You?Aluminum wiring rewire cost runs about $3,000 to $20,000 for a whole house, and a CPSC-approved pigtail repair can avoid it. Ask your insurer first.
Which Way Should a Ceiling Fan Turn in Summer and Winter?Run a ceiling fan counterclockwise in summer for a breeze and clockwise on low in winter to push warm air down. DOE says a fan allows a 4°F warmer setpoint.
How Much Does It Cost to Install an EV Charger at Home? (2026 Real Quotes)A home Level 2 EV charger costs about $800 to $2,500 installed in 2026, and a panel upgrade can add $1,000 to $4,000 more. Here is what a fair quote looks like.
Do I Need to Upgrade to a 200 Amp Panel? (And When 100A Is Fine)Do I need a 200 amp panel? A 100A service carries about 24,000 watts. Add up your loads first, since load management can cost far less than an upgrade.
Heat Pump vs Gas Furnace: Which Is Cheaper to Run in 2026?Heat pump vs furnace: at the 2026 U.S. average of 18.3 cents per kWh, a COP 2.8 heat pump costs about $1.92 per 100,000 BTU of heat, gas about $1.52.
- Heat Pump Water Heater: Is It Worth It? (Rebates, ROI, the CA Catch)Is a heat pump water heater worth it? It cuts the bill about 50% to 60% versus an electric tank, but against cheap gas in California it can cost more to run.
How Much Does a New HVAC System Cost in 2026? Why Quotes Vary 2xA new HVAC system costs $4,000 to $15,000 for most homes in 2026, and a gas furnace plus AC replacement averages around $10,500. Here is why quotes differ.
Is Solar Worth It in 2026 Without the Federal Tax Credit?Solar is still worth it where power costs over 14 cents per kWh: a $21,000 system saving $2,200 a year pays back in about 9.5 years without the 30% credit.
Mini Split vs Central Air: Which Should You Install? (Cost + When Each Wins)Mini split vs central air turns on ducts: central AC runs about $5,000 to $6,000 with good ducts, while a mini split wins when new ductwork costs more.
Tankless vs Tank Water Heater: Worth It, or Regret? (and the Heat Pump Option)A gas tankless heater can cost about $4,000 more to install than a 50-gallon tank and save around $100 a year. See when it pays and when a heat pump wins.
What Size AC Do I Need? Why Bigger Is Usually WorseWhat size AC do I need? Get a Manual J load calculation: a 2,000 sq ft house can come out near 1.5 tons, while the old 500 sq ft per ton rule says 4 tons.
Whole-House Generator vs Battery Backup: Which Is Right for You?A whole-house generator costs about $10,000 to $18,000 installed, a Powerwall about $14,200, and a portable with an interlock about $1,400 to $2,250.
- What Size Wire Do I Need? An AWG GuideHow to pick a wire gauge from amps and distance, why long runs need thicker wire, and the ampacity basics, with an AWG reference table.
Yard, landscape and outdoor
What Are the Actual Dimensions of a 2x4? Nominal vs Actual Lumber SizesA 2x4 is actually 1-1/2 inches by 3-1/2 inches. This chart lists the real size of 1x boards, 2x lumber, 4x4 and 6x6 posts, and explains why they shrink.
When to Seed or Overseed Your Lawn: The Fall Window Explained by RegionThe best time to seed a cool-season lawn is mid-August to mid-October, when soil sits at 50 to 70°F. Here are regional dates, seed rates, and watering.
Composite vs Wood Deck: Which Should You Actually Build? (2026)Composite vs wood deck: boards cost $4.48 to $13.30 per sq ft for composite and $2 to $3.75 for pine, but wood upkeep closes much of the gap over 15 years.
Do You Need a Permit to Build a Deck? How to Know Before You BuildDo I need a permit to build a deck? Usually yes if it is attached to the house, over 30 inches high or over 200 sq ft. A deck permit often costs $100 to $350.
How Much Does a Deck Cost in 2026? Real Quotes by Size & MaterialHow much does a deck cost? Pressure-treated runs $15 to $25 per square foot and composite $40 to $70 installed, so a 12×16 deck is about $2,900 to $13,400.
How Much Does a Fence Cost in 2026? Why Your Quote Is Double What You ExpectedA fence costs about $15 to $55 per linear foot installed in 2026, so 250 feet of vinyl runs roughly $7,500 to $13,750 before gates and old-fence removal.
Is a Sprinkler System Worth It? Cost, Payback, and When to DIYA professional in-ground sprinkler system costs about $0.88 to $1.65 per square foot in 2026, so a 5,000 sq ft lawn runs $4,400 to $8,250. Is it worth it?
11 Landscaping Mistakes Homeowners Wish They'd Avoided (and What They Cost)The costliest landscaping mistakes are planting for today's size and poor drainage. Removing a 30 to 60 ft tree costs $435 to $870, a French drain up to $7,500.
Why Paver Patios Sink, Heave and Fail: The Base Mistakes Nobody Warns You AboutMost paver patios fail from the base up: skip compaction or use under 4 inches of crushed stone and the surface sinks or heaves. Here is the fix, with numbers.
What Does a Pool Really Cost Per Year? The Numbers Owners Won't Tell YouPool maintenance costs about $1,000 to $2,750 a year DIY and $2,200 to $4,500 with weekly service, plus $500 to $1,500 a year set aside for big repairs.
Retaining Wall Cost, and the Warning Signs Yours Is About to FailRetaining wall cost runs $20 to $53 per square foot installed, about $3,500 to $9,400 for a typical wall, and a bulge usually means water is pushing on it.
Sod vs Seed: Which Is Actually Cheaper for a New Lawn? (Full Cost Breakdown)Sod vs seed: Fixr puts installed sod near $1.29 per sq ft and seed near $0.24, so a 5,000 sq ft lawn costs about $6,450 as sod and $1,200 as seed.
- How Much Gravel Do I Need? A Driveway GuideHow much gravel do I need? Depths, coverage, and the yards-to-tons conversion for a driveway, path, or drainage job, with a worked example.
- How Much Mulch Do I Need? Depth & CoverageHow much mulch do I need? Work out the right depth, how many bags make a yard, coverage per yard, and when bulk beats bags, with a worked example.
- Standard Stair Dimensions: Rise, Run & Code LimitsStandard stair dimensions: the usual rise and run, code limits, the comfort rule for steps that feel right, and a stringer layout with a worked example.
Interior
Why That Ceiling Crack Keeps Coming Back (And How to Fix It for Good)A ceiling crack that keeps coming back along a wall is often truss uplift, and the lasting fix is to free the drywall within 16 inches of that wall.
How Much Is LVP Flooring for a 2,000 Sq Ft House?LVP for a 2,000 sq ft house costs about $8,000 to $26,000 installed at $4 to $13 per sq ft. Planks alone run $4,400 to $22,000 with 10% waste.
Hiring and pricing
How to Check If a Contractor Is Actually Licensed and Insured (and Why the COI Matters)To check if a contractor is licensed and insured, look up the license on your state board, then get an ACORD 25 certificate and call the agent to confirm.
Change Orders: How to Stop a Contractor's 'Extras' From Blowing Your BudgetA construction change order is a signed, priced change to your contract. Hold 10 to 15 percent in reserve on a remodel and approve no extra before it is priced.
"The Contractor Took My Deposit and Ghosted": What You Can Actually DoIf a contractor took your deposit and vanished, dispute a card charge within 60 days, send a demand letter, then file in small claims for $30 to $100.
Do I Need a Permit for a Bathroom Remodel, Deck, or New Outlets?Do I need a permit for a bathroom remodel? Moving plumbing or adding more than 5 outlets does; paint and tile don't. An attached deck needs one at any height.
Estimate vs Quote vs Bid: Which One Is Actually Binding?An estimate is a ballpark that can move, a quote is a fixed price you can hold a contractor to, and a signed bid or proposal binds both sides of the job.
How Much Deposit Should a Contractor Ask For (Without Scaring Off the Customer)?Most contractors ask for a 10% to 25% deposit, with milestone payments after that. State rules can cap it: California allows 10% or $1,000, whichever is less.
How to Budget a Remodel: The Hidden Costs Nobody Quotes YouTo budget for a remodel, hold back 10 to 20 percent for surprises: on a $40,000 kitchen, 15 to 20 percent is $6,000 to $8,000 before you sign anything.
Why 3 Contractor Bids Can Differ by $30k, and How to Compare Apples to ApplesHow to compare contractor bids: bids for the same job often vary 20% to 40%, mostly from allowances and exclusions, so line them up on one scope first.
How to Tell If a Contractor's Quote Is Fair (Without Being a GC)To tell if a contractor is overcharging, compare three itemized bids on one scope. Markup of 18 to 25 percent is normal; a bid 30 percent low is missing items.
How to Vet a Contractor Before You Hire (Not After It Goes Wrong)To vet a contractor, check the license number with your state board, get a certificate of insurance, call recent customers and keep the down payment small.
Is a 50% Deposit Normal? How Much to Pay a Contractor UpfrontA 50% deposit is not normal for most home jobs. Many states cap it near one-third, and California caps it at the lesser of $1,000 or 10% of the price.
How to Price a Job: Markup vs Margin, Hourly Rates & the Profit You KeepMarkup vs margin: a 25% markup is only a 20% margin, and a 50% markup is 33%. Here is how to price a job so overhead and profit both get paid.