Structural concern or storm damage? We assess within 24 hours.

What Keystone Builders builds

Ten core services across kitchen, bath, structural, and full renovations — all permitted, all warranted, all under one PM.

Walkthrough & Scope Review

A project manager walks through your home, documents the scope, and identifies hidden conditions — party walls, load-bearing elements, permit triggers — before a dollar is committed. No charge, no pressure.

Free

Kitchen RenovationMost booked

Full gut-reno to cosmetic refresh: layout reconfiguration, load-bearing wall removal with engineered header, rough-in relocation, custom or semi-custom cabinetry, countertops, tile, and appliance installation. We manage every sub from framers to cabinet installers.

$40,000–$120,000

Bathroom Renovation

Master baths, hall baths, and powder rooms. Waterproofing, Schluter systems, heated floors, custom tile, vanities, and glass enclosures. We scope the plumbing and electrical and carry it all under one contract — no finger-pointing between subs.

$12,000–$55,000

Rowhome Full Renovation

Complete gut rehabilitation of Philadelphia rowhomes: structural assessment, sister joists, balloon-frame conversion, new HVAC throughout, updated electrical panel, plumbing stack replacement, and full interior finish work. We know party-wall protocol intimately.

$120,000–$350,000

Basement Finishing

Damp proofing and waterproofing first — always — then egress windows to meet IRC 5.7 SF requirement, framing, electrical, HVAC extension, insulation, drywall, and flooring. L&I inspections managed end to end.

$30,000–$70,000

Additions & Bump-Outs

Rear bump-outs, rooftop decks, and second-floor additions permitted through Philadelphia L&I. Structural drawings by our licensed engineer, zoning review included. We have built additions in every Philly neighborhood — each has its own quirks.

$60,000–$180,000

Multi-Family Renovation

Duplex and triplex repositioning, unit separations, staircase reconfiguration, and mechanical upgrades. Philadelphia's rental-to-ownership conversion boom is our specialty — we understand ZBA filings and the city's certificate-of-occupancy process.

$90,000–$280,000

Pre-Sale Condition Work

Targeted improvements that move the needle on appraisal: kitchen surface refresh, bath update, exterior repointing, and code corrections flagged by inspectors. Fixed-scope, fixed-price, 4–6 week turnaround.

$15,000–$45,000

Open-Book Project Management

For projects $200,000+: a pure cost-plus structure with 18% GC fee, all sub invoices shared, and weekly budget-vs-actual reports. No hidden markup on materials. You see every line item.

Cost + 18%

Structural Assessment & Remediation

Foundation cracks, sagging joists, lintel failures, and deteriorating party walls. A licensed structural engineer assesses; we execute the repair under one contract. Common in Philly's older rowhome stock and critical before any major renovation.

$5,000–$40,000

Ranges reflect job complexity — your written flat-rate quote comes before any work begins.

Every job. Every time.

  • Written scope and budget range within 5 business days of walkthrough
  • Open-book budget — every line item from a real quote
  • Weekly photo updates, every Friday, no chasing required
  • 2-year workmanship warranty from substantial completion
  • All permits filed and managed — you never visit L&I
  • One project manager — one number — the entire job

03 / How it works

From first walkthrough to final punch list

Transparent budgeting, permitted work, and weekly updates at every stage

  1. 1

    Free Walkthrough — No Commitment

    A project manager walks your property, documents the scope, flags any structural or code conditions, and photographs everything relevant. You get a written scope summary and budget range within five business days.

  2. 2

    Proposal & Contract

    Rob builds your proposal from real sub quotes and current material pricing. Every line item is itemized. We walk you through it together, answer every question, and adjust scope if needed before you sign anything.

  3. 3

    Permits Filed & Schedule Set

    We file all L&I permits and build your milestone schedule — framing start, rough-in windows, inspection dates, finish start, and projected substantial completion. You receive this before demo begins.

  4. 4

    Construction with Weekly Updates

    Every Friday your project manager sends a photo update showing progress, the week's work completed, and what's on deck for the following week. All invoices and change orders post to your client portal in real time.

  5. 5

    Final Walkthrough & 2-Year Warranty

    We walk every item on the punch list together before you sign off. All sub warranties, permit final approvals, and care documentation are delivered in a single close-out packet. Workmanship warranty runs two years from the day you move in.

Permitted, inspected, and warranted — in writing, before you sign.

No pressure. No upsell. Just fixed.

One walkthrough. One proposal. One team.

Free project walkthrough across Philadelphia — no commitment, no pressure, real numbers

PA HIC Registered — #PA092847·4.9★ Google · 320+ reviews·Free walkthroughs — no commitment

Keystone Builders

Assistant

Hi there! Welcome to Keystone Builders. How can I help you today?

I can answer questions, schedule appointments, and provide quotes — available 24/7, even after business hours.

Try asking me about services, pricing, hours, or anything else. This is a demo of VantaWeb's AI chat — on your live site, it's fully trained on your business.

Type a message...

Powered by VantaWeb