Remodeling a 1970s or 1980s home in Denton is a different project than remodeling one built in 2005, and the difference lives behind the drywall. We have spent over 17 years opening up walls across North Texas, and our honest position is this: open the walls once, fix everything behind them once. Piecemealing systems work across three separate projects is how homeowners end up paying for the same drywall repair three times. Here is how we approach these houses, what the 2026 numbers look like, and the order we would do the work in if it were our own home remodeling project in Denton.
What Makes 1970s and 1980s Homes a Specific Remodeling Case?
These two decades sit in an awkward middle. The houses are new enough to have circuit breakers and sheathed cable, so they escape the worst problems of pre-war construction. But they are old enough to carry three era specific issues that newer homes simply do not have.
First, the tail end of the aluminum wiring era reaches into the early 1970s. Second, polybutylene piping entered new construction in 1978 and stayed common through the early 1990s, which puts many 1980s Denton homes squarely inside the problem window. Third, the floor plans of the period were compartmentalized: walled off kitchens, separate formal rooms, long hallways. A house from 1974 and a house from 1986 can therefore have completely different problem lists, which is why we always start with the build year, not the wish list.
Is the Wiring in Your 1970s Home Safe, or Does It Need Replacing?
The good news first: homes built in the 1970s and 1980s usually do not need complete rewiring. Family Handyman’s era guide, written by a licensed master electrician, notes that houses from this period typically already have 100 or 200 amp breaker panels and dedicated kitchen and laundry circuits. The electrical system is a candidate for targeted fixes, not automatic replacement.
The one thing that changes that answer is aluminum branch wiring. Aluminum was used in residential circuits primarily in the 1960s and early 1970s, and the risk lives at the connections: aluminum oxidizes, connections loosen, resistance builds, and heat follows. The Consumer Product Safety Commission maintains guidance on it, and a licensed electrician can confirm what you have in one visit. If aluminum is present, it does not always mean a rewire. Approved connectors and CO/ALR rated devices can make connections safe, though during a remodel with open walls, replacing aluminum runs with copper is often the smarter long term spend.
Two more electrical checks matter in this era of home:
The panel brand. Certain panels common in 1970s and 1980s construction, most notably Federal Pacific Stab-Lok and Zinsco, have well documented failure histories, and some insurers now flag them. If your Denton home still has its original panel, budget for a panel upgrade during the remodel.
Capacity and protection. A remodel is the natural moment to add the GFCI and AFCI protection modern code expects, plus dedicated circuits for the appliances a 1975 electrician never imagined. As a benchmark, a full whole house rewire runs roughly $10,000 to $30,000 as of 2026 cost guides, but most 1970s and 1980s homes land far below that because the fixes are surgical rather than total.
Which Pipes Belong in the Dumpster: Galvanized, Polybutylene, or Both?
Plumbing is where the 1970s and the 1980s diverge most sharply.
Earlier 1970s homes may still carry galvanized steel supply lines, which corrode from the inside, choke water pressure, and discolor water as they age. If your showers have gone weak and your water runs rusty after a vacation, galvanized pipe is the usual suspect.
Homes built from 1978 onward face a different enemy: polybutylene. This gray, flexible plastic pipe was installed in millions of US homes between 1978 and 1995 before lawsuits and failures ended its production, according to InterNACHI, the international home inspectors association. Chlorine in municipal water degrades polybutylene from the inside out, so the pipe can look fine right up until it fails. There is no reliable way to test how close it is to failing, insurers increasingly decline or surcharge homes that still have it, and it shows up as a red flag in resale inspections. Our position is blunt: if a remodel opens the walls of a polybutylene home, replacing it is not optional, it is the whole point.
The modern fix is a whole home repipe in PEX. As of 2026, Angi puts typical repipe costs at $1,500 to $15,000 with most homeowners near $7,500, and PEX specific projects commonly land in the $4,000 to $10,000 band. One North Texas specific note deserves emphasis: slab foundations, the default across Denton and most of Texas, push repipe costs roughly 25% to 50% higher because supply lines get rerouted through attics and walls rather than under the floor. Drywall repair after the repipe is often quoted separately, which is exactly why pairing a repipe with a remodel saves real money. The walls are already open, the patching is already in the plan.
While the plumbing is exposed, it is also worth checking the original cast iron drain lines, angle stops, and the water heater connections. Forty year old shutoff valves fail at the worst possible moments.
How Do You Open Up a Closed 1970s Floor Plan Safely?
Layout is the fix people actually see, and it is the one with the highest structural stakes. The compartmentalized floor plans of the 1970s and 1980s usually put a wall between the kitchen and the living space, and in many homes that wall is load bearing.
The safe sequence never changes. A structural engineer confirms which walls carry load, designs the beam (LVL or steel) that will replace the wall, and produces the stamped plans the city needs. Then the crew shores the ceiling, removes the wall, sets the beam, and reroutes whatever was hiding inside: wiring, plumbing, sometimes HVAC ducts. Rerouting is the silent budget item; utilities inside the wall can meaningfully raise the price, which is another reason to combine layout work with the wiring and plumbing scope rather than treating them as separate projects.
On cost, 2026 guides from Angi and HomeAdvisor put load bearing wall removal anywhere from about $1,400 for a simple single story wall to $10,000 or more in multi story homes, with engineering and permits on top. Non load bearing walls are far cheaper, a few hundred to a thousand dollars. Every structural change in Denton needs a city permit and inspection, and we handle the permits and engineering in house so the project does not stall at the city counter.
This is also the stage where a dated kitchen becomes an open one. A kitchen remodel that absorbs the wall removal, the new circuits, and the relocated plumbing in one scope is dramatically more efficient than three sequential contracts, and the same logic applies to a hall bathroom remodel that shares a wet wall with the kitchen.
Two era hazards deserve a flag before demolition starts. Homes built before the 1978 residential lead paint ban may have lead based paint under later layers, and popcorn ceilings and some flooring from before the 1980s can contain asbestos. Neither is a reason to abandon a remodel; both are reasons to test before sanding or tearing anything out, using a qualified testing service.
What Order Should the Work Happen In?
To remodel a 1970s or 1980s house without paying twice, run the sequence in this order:
- Inspect and test first. Confirm the wiring type, the panel brand, the pipe material, and (where relevant) lead and asbestos, before design decisions lock in.
- Bring in the structural engineer. Wall removal plans and beam sizing drive the framing scope, the permit set, and a large share of the budget.
- Pull permits with the City of Denton. Electrical, plumbing, and structural changes all require them, and unpermitted work resurfaces at resale.
- Do all behind the wall work in one pass: repipe, rewire or remediate aluminum, panel upgrade, new GFCI and AFCI protected circuits, rerouted lines.
- Insulate before closing up. Wall cavities from this era are usually underinsulated by today’s standards, and open walls are the one cheap chance to fix insulation permanently.
- Close, finish, and inspect. Drywall, floors, and fixtures come last, after every inspection behind them has passed.
If you want a second set of eyes on a 1970s or 1980s house before you commit to a design, request a free estimate and we will walk the house with you. And if you are still comparing contractors, our guide to the questions worth asking a Texas remodeling contractor is the honest checklist we would want our own family to use.
Frequently Asked Questions
Does a 1970s house need to be completely rewired?
Usually not. Homes from the 1970s and 1980s typically have breaker panels and grounded, sheathed cable, so full rewiring is the exception. The deciding factors are aluminum branch circuits, which need remediation or replacement, and problem panel brands like Federal Pacific Stab-Lok or Zinsco, which warrant a panel upgrade. A licensed electrician can settle both questions in a single inspection visit.
How do I know if my house has polybutylene pipes?
Look for gray, flexible plastic pipe at the water heater, under sinks, or where supply lines enter the house, often stamped with “PB” and a number code. Polybutylene was installed between 1978 and 1995, so homes built in that window deserve a close look. A plumber or home inspector can confirm it quickly, and photos of the water heater connections are usually enough for a first read.
Do I need a permit to remodel a house in Denton?
Yes, for anything beyond cosmetics. Electrical work, plumbing changes, and any structural modification such as removing a load bearing wall require permits and inspections from the City of Denton. Unpermitted work tends to surface during resale inspections and can force expensive rework. We handle permits and engineering in house for our projects, so this step never falls on the homeowner.
How much does it cost to remove a wall in an older home?
As of 2026 cost guides, a non load bearing wall runs roughly $300 to $1,000 to remove, while a load bearing wall typically costs $1,400 to $10,000 or more, plus structural engineering and permit fees. Utilities hidden inside the wall, wiring, plumbing, or ductwork, are the biggest cost variable, since everything in the wall must be rerouted before the beam goes in.
Should I worry about asbestos or lead paint in a 1980s home?
Test, do not assume. Lead based paint was banned from residential use in 1978, so 1970s homes and earlier layers in 1980s homes can contain it. Asbestos appears in popcorn ceilings, some flooring, and insulation materials from before the 1980s. Both are manageable with proper testing and, where needed, licensed abatement before demolition. The danger is in sanding or tearing out materials blind.
Is it worth remodeling a 1970s house, or should I sell and buy newer?
If the foundation and structure are sound, remodeling usually wins on location and lot. Homes from these decades sit in Denton’s established neighborhoods with mature trees and larger lots than most new construction offers.
The systems problems in this article are all solvable, and solving them during one well sequenced remodel converts an aging house into one that performs like new construction where it counts.
A 1970s or 1980s Denton home rewards the remodeler who respects what is behind the drywall. Check the wiring era and the panel brand, condemn the polybutylene without sentiment, let a structural engineer bless the open floor plan, and do every system fix in the one window when the walls are open. Sequence it that way and the house you already own becomes the house you would have paid a premium to buy.